Prarambh Batch 12th Physics - 1st Class FREE | Electric Charges and Fields - Lecture 1

0:00 I welcome all of you to be the next topper On this platform of. Can I hear my voice Is it happening? Am I audible? What Can I see you? Tell. Tell me, tell me, tell me in the comment box Look at me if you can see or hear me I am giving So. I am seeing, I am seeing, I am seeing I am, I am seeing, I am seeing Am? No app error. hey youtube pe class It is going on right Brother? Am I visible? Can I Can you hear me? tell tell tell tell. Am I visible? very nice. very nice.

0:48 Oho Wow, I am looking good. what is visible Am? Perfect voice. perfect. Tell me how are you guys? How was 11th? Ruined. Tell me it is very ruinous or very beautiful. How many marks would you give yourself out of 10? 11th class For? Very wed very wed. Wasted Wasted Ruined. Two 5 7 10 out of 10 six five zero. Hey brother, is there someone with zero as well? five negative negative hey double00 zero 7 8 3 2 1

1:36 0 who gives 100 out of 10 brother so much who cheats who is triple 00 zero Brother with triple 00 zero with you right now I will catch you, I will catch you now Varsha Shukla -10 Naman Shulam has destroyed Lanka brother no how many zeros did you put after -1 Is. Oh brother Oh brother there is a lot in negative too More. Are you scared of 12th? What Are you scared of 12th? yes or no Tell? Because 11th is somewhere yours There was a school examination. Yet still you You ruined it. yet you ruined it Gave. So this is 12th. the paper here

2:23 It will be taken, that board will take it, CBSE will take it. You may be from some other board, from Rajasthan board or Gujarat board Be it from Bihar Board or Haryana Board You are from. They will take your examination there and Physics paper in that too Physics paper. Is there a little fear Seems like? Are you feeling a little bit scared Is? I am feeling very scared. Who is he? Why are you breaking us Smit? yes uttarakhand board ok ok ok ok ok ok ok Richa ji has said a very good thing we will give our Best, a small memory on this matter I am missing the line, son, a new beginning

3:09 Let's make a fresh start that's ruined It's done, it's done, now forget him and take a new path But let's go. life every chance everyone has a Gives a new chance. Why not take that chance Let me give it to you and see. listen back son Let's try it again. A new beginning We do. So is this the beginning of the conch shell You are ready for yes? Are you ready for this commencement ceremony? Are you ready? Son, we will give our best. I am with you from the beginning from the beginning from the beginning

3:55 From the beginning till the end, till the exam. You will analyze class 12th physics of the paper. Very hard papers are coming of CBSE. I am giving you a reality check. Reality is not a fantasy Son. I am giving you a reality check. very hard The papers are coming. People also believe that Is. A little bit is okay. Conceptual The number of questions has been increased. First It used to be that the questions Have you given it in NCERT or in class? or being done in previous years They come in repeated form. But Now the level has changed. of a good type I have started making questions. Have started asking. So you will have to work hard throughout the year. i you I am not scaring you. But I'll give you this I assure you that I am with you Am. Becoming your teacher, becoming your Guru, As your elder brother, if I prepare as much as I can

4:41 I am ready to do it, I am going to prepare as much as I can If you are ready for this then 100% people will get this the other student will feel that The paper was hard but when you came out after giving the paper When you leave, you will be overjoyed that you I have read what I worked hard on all year Whatever I have done has come in handy. can you understand what i am saying are you there? Can you hear it? Son, be it Punjab Board or Gujarat Board, Be it Haryana Board, Bihar Board, Jharkhand Board, Uttarakhand Board, Rajasthan be it a board, any board, if your The syllabus is matching with NCERT If yes, then you can go ahead with this batch. It's just the exam style and paper pattern, That little bit of change is very common. According to the board, if the syllabus remains the same If you are there then you will understand everything. And it will not happen that according to CBSE

5:27 The way in which questions are being asked Same type of questions will be taken. that is They will definitely be taken. Your Respectful Board or some competitive examination if you are preparing for that then from there also A little bit about one topic Whatever stories there may be, they are all from this batch It will be covered in. this surety i I will give it to you. Tell me further. tell me what next Do you have a question? Yes. Batch starting today This is first class and it is a free class On YouTube. Reading from zero Is. Prince Chauhan is speaking to Sir Zero I have to study. Son, I will take it from minus. From the minus. It is said that in 11th These are the concepts which are used in 12th.

6:14 Which is 100% correct. Vectors, Basic Maths are such concepts which are being used Are. Like I am talking about this chapter This is linked to the gravitation chapter. Electric Charge and Field Gravitation Linked to the chapter. which 11th you ruined a small chapter from there which you probably read for fun He may or may not have read it. but from there it It is linked. So if you read that chapter It has happened, you will get an added advantage. You will get 100% if you have read it. But If you haven't studied it, son, I am at this level You are talking much below this level Am. It is not even coming in the camera frame This talk. These hands are also in the camera frame It is not coming. So go from there to here I will deliver it. I give you this assurance. Yes. But what is being said in the wait You will have to follow him blindly. You have to have faith. let me tell you some thing If it is there then it will have to be noticed. that work

7:00 You have to do it. Then the matter will move forward. Tell. Sunil Tiwari ji is saying he has fever Is. Son, here also the other two teachers are like this whoever has it, he is also sick but then I am also taking two classes today. yes why No, why not son? So class 12th We are going to launch the starting batch. But before that let me tell you one thing. How is the josh? Tell me in the comment box. how Is it the josh? I will check this. session after that I will start with. Tell me how is the josh? Are you ready for this session? What

7:47 Are you ready for this journey? Oh wow this is exactly what I need till the end. This only I want it till the end. the rest of mine I have no expectations from you. Something I I am telling you something that you have to follow and I just need enthusiasm in this class. Passion Needed in this journey. rest if you have 11th Nothing comes of it. I'm that basic I will take it from there. you understand everything will come. I just need some things and This is one of them Passion. You must have a hunger for reading There should be another fire inside. to be enthusiastic should read For. Go ahead? Move ahead. That's ok.

8:32 Let's start the session. blowing the conch Are. So son, see, it is winter now. Now! The cold weather is getting a little milder now Are you going? So in the cold season, you Have you ever felt like this when a sweater wear it or take off the sweater or You are sleeping covered with a quilt and the quilt When you fold it, it makes a rustling sound. Have you noticed this? yes or no Lyrics? Have you ever noticed this? Oho Yes or no then tell me friend, I have noticed this Have you not done that? Yes? yes, noticed that Have you ever? A tad-tad-tad sound is heard. If you haven't noticed this, then you never This monsoon season is going to start someday You will never experience this lightning strike effect You will see. Why does it fall? This electricity Why does it fall? what is the reason behind this It happens? That is related to this chapter. These Why does a crackling sound come? This is related

9:19 is the electric charge and field. from that This is also a good example, have you ever felt this It must have happened that when we ever went to open the door If yes then what happens is that there is a shock Looks like a small shock. These Next is a door to the upstairs office. Where we open or close such a door When you go you feel a slight shock. Yes here every sir has applied his brain A rope has been tied here. of insulators The tank works so we don't get shocked Seems like But you too have felt this sometimes have done it. Did you feel this or not Have you done it? Did you feel this or not Have you done it? Never open or close the door I feel a small, slight shock. What do you think or don't you think? hey speak up Say yes or no. hey take it yes yes no hey Friend, what a wonderful life you have lived. Here is another good example contrary to all these. This must have been done. it did that

10:05 Must have done it. Whenever you are free. picked up the comb, rubbed the hair with his feet and then used to tear paper into pieces and pieces of paper I used to move the comb over it in such a way that it would look like paper Those pieces attract that. She Attracts It is done by this comb. did it feel Is? Did you feel it? does this feel Have you done it? You did it, right? Oh this is what I needed Me. Now this is not magic, son. it's not A magic. it's the concept of electric Charge and Fields. this is a part of this chapter There is a concept. Why does this happen? his reason You will find it in this chapter. a lot of such All incidents will happen. Like you on Instagram If you scroll, you might have seen this at some point You might have seen a sphere on which we If I put my hand on it my hair would stand up Are. This is on Instagram or YouTube You must have seen such a video somewhere on Shots saw. It is possible at your school or home

10:52 There won't be such an instrument, but it could be Is. It may be true, but it is somewhere You must have seen it. if you haven't seen it then its for you This is the best example. so this is magic It is not there, son. These concepts are relatable With whom? From Electric Charge and Field. What is the logic behind these? Their What is the reason behind it? what is the reason It happens? You will see that in this chapter You will get it, you will get to understand it. Behind this one A basic concept is hidden in electric of the charge. Whose son is he hiding? of the electric charge. So in today's session We talk about relatable things about electric charge do. Whose? Electrible Electric Relatable to charge. Look son, go study. There are electric charges. so today's session I will start first From electric charge. then his properties We will discuss about it. then a instrument will come gold lift

11:37 By electroscope. and in the last we Coulomb's Law and some of its basic questions We will move forward with this type of incident. Can we Proceed further Now? ton ton ton ton can we carry on Are? Remember this, son. You are as knowledgeable about physics as I am Also make a copy of your first class note. Should be different. So you keep writing together Session one topics how many covered in today's session They will be made to feel lighter by writing their names Take that in these sessions we have today's session I have to cover us. I mean, today's session Electric is going to be launched By charge. what is this electric Charge? Where did it originate from? Where But the word electric charge was used for the first time Have I come? History according to NCERT What does it say about this electric charge In? We will go to study all those things. And

12:24 What are its properties? What in a way you will use it in this chapters All discussions are going to take place. so do you Are you ready? I just want to see the fire once in the chat box. then we start the session do. Then we will start the session. One I want fire in the bar comment box. by the fire Comment box needs to be filled. do not burn there is comment box To. Wow wow. wow bhupesh Shikhu Creation Pride is very great oh wow oh wow oh wow this together

13:11 Who has come up with a different emoji Rajesh? Oja, Bhaiya ji, let me move ahead. First of all Understand that electric charge does not originate from here The chapters are divided. listen to me Understand this thing. so now we are going to get started have been. Now we are going to get started. I will first give you an overview of Book One Physics I am giving it. related to electric charge These are all the things. if charge when rest Then we will read a branch. a branch we study physics which is called Electrostatic. what is that called Son? Electrostatic. What does static mean? There is rest. static means rest and Electro means charge. So charge while resting It will happen then in whichever branch we go to that place Whatever phenomena we study, Those branches are called Electrostatics. inside it we two I read the chapter, chapter number one chapter

13:56 One and chapter two. chapter one ie Electric Charge and Field, Chapter No. to i.e. electrostatic potential and Capacitance. These are the two chapters We study inside electrostatics. After this, whatever Book One Physics All of them are chapters Will come under electrodynamics. These electrodynamics i.e. very small Battery charging will happen when in motion There is talk of electrodynamics. These Both branches together form a big branch is formed which is called Electromagnetism. like it happened in 11th I used to do it. What used to happen in 11th, son? mechanics doing mechanics a lot There used to be a big branch. in book one physics We were studying in class 11th. the same as one A very large branch Electromagnetism. book one physics, class 12th electromagnetism It is on basis only. and what we are going to read now are you, which chapter is that? He is this

14:43 come under electrostatics. So, chapter number one, chapter number two, this This is part of electrostatic. a light The C definition states that What is electrostatic? it's a the branch of physics that studies the Electric charge at rest. as many as Read the phenomenon when the charge is at rest will be called electrostatic. Let's move the story forward. Now let’s understand Where did it originate from? Electric When did the charge come into use? when for the first time Was there any talk about electric charge? Look brother, one by one sales of millets The scientist who told this It is worth noticing that a material called amber I have it. which is like gum from a tree The type that comes out is called amber Is. So you have a material like Amber whose jewellery is made Ornaments are made. Now this We saw ornaments that looked like stones

15:29 It is like that but you have made jewellery out of it right? Somewhere in the ear, somewhere in the nose, somewhere in the throat She is wearing it like this. Now it happened that at that time If the weather is cold then we will wear wool or I am wearing silk clothes. it is ok to believe Is? We are not. We mean any human being The conversation is happening here, son. So it happened that There's some rubbing going on between these two Is. Somewhere in between these two There is friction. Somewhere this Coming in contact with both. Now its Because of this, the charge phenomenon is happening somewhere. Now we know what phenomenon is happening Not there. but something is happening Is. What happened sir that this Amber jewellery And this is between wool and silk clothes There is no friction due to any rubbing in the some incident happened due to which Electric property has been developed. and this The ornaments that they made because of the property No, this jewellery we have made from amber

16:15 Attracts pieces of paper. He Attracting pieces of paper. Was asked why? Why is this happening? Then it is told that by electric charging Something is developing in it. Although one It was a Greek word on the basis of which this The term electric charge came into existence Is. But this is first and foremost a historical event. That was where it was discussed. is this Do you understand this small thing? This is from NCERT According to what was mentioned in the introduction It was, that's what I am telling you. what can you understand happened to him? Do you want to note it down? son this These are small things. So if you want it Take a note in your own language. no one from here The question will not be asked. I guarantee it. No question can be asked from here. this is yours Things told to increase interest. No question can be asked from here. Ok? So even if you don't note it, there is no objection.

17:00 Take a look at the slides. yes, but I The questions that I will get you to ask, whatever I will tell you, this It can be asked in two marks, there You have to note 100%. worked there The conversation will begin. Ok? So, it has been said Due to which property does this happen? So, Sir, develop something by charging the electric charge is happening due to which this effect occurs Is. Then for the first time the word electric charge was used has come into existence. Now this has happened This is a historical thing which is written in NCERT Has been. Do you know what actually happens? Actually the electrons inside the atom, Protons are electrically charged particles due to which electric charge occurs It happens. Are you able to understand what I am saying? So look at About the origin of electric charge If the matter is told, then first consider an atom do it. This is what we had at the atom. these slide notes Have to do it. This is what we had at the atom. Atom's

17:46 The nucleus is inside. This nucleus. These Nucleus. Now we know this thing that protons neutrons inside the nucleus There are. protons inside the nucleus and There are neutrons. In addition to this there are many It is not necessary that all particles are there That there are only two particles. No. These right as a fundamental particle But apart from this there are many other particles which we do not study. We are limited electrons, protons and Up to the neutron. So how much energy does this proton have? Is it charged? then on top of this neutron How much does it charge? and this nucleus of the electrons revolving around How much does it charge above? How much Is there an electric charge? told his point Has been. So it is said that the most Smallest Individuals Charged with yes, that is an electron. how much is the charge

18:33 near the electron? Sir near the electron 1.6 * 10 to the power is equal to -19 coulombs Is. what did you say? Coolum. This means that Sir the unit of charge is SI unit coulomb Is. What is the SI unit of charge? Coulomb Is. and its symbol is big c big one C will be its symbol. Now one more time Think son what is written in its MLT form May go? hmm yes i read that in my childhood Formula. hey, I studied it in 9th and 10th Maybe this formula is that charge q is Equal to i * t. Or you used to write = Q / d such a formula. So if I If I simplify it, then I current means The ampere will come in A. arrive at time T Will go. So A1 T1 becomes its MLT form

19:20 Will go. Whose? MLT form will be created. M Do you probably know the LT form? No If I know, I will let you know once I get back. Just remember this little thing for now. Now watch talk. We were talking about electrons. The smallest part above the electron. To all Small charge 1.6 * 10 watts to power -19 Coolum. You must remember this small part will be. This charge is negative. charge this It is negative. So, over the electron has a negative charge. how much is the charge sir? 1.6 * 10 to the power -19 Coulomb. This is called symbolic can also be written as E in minus Can. Now the proton also has the same charge But in the positive. Same as above proton Charged but in positive. In symbol it is It is represented by +e. While the talk If it is done on neutron then it will be fine Gopal

20:05 Neutrons do not have any charge. A neutron is a neutron. Zero charge written Will go. You should take note of these small things, son. Move on because it's going to be used a lot. This is going to be used a lot. when I I will get the questions asked when I ask the questions These things will be of use when I get them done Is. That's for sure. Smith this time battle As much as I need. That is in your hands, son, how can you do that studying from yes. What should I raise Ahead? We are Priya well my name is Priyashi.

20:50 priyanshi sir which book should I consider Is? Son, now only do as much work as I can assign to you. I am here for you, you have to do only that much. in class It is being taught. after class you will get some DPPs will be provided or Worksheets or chapter wise sheets will be provided to you Will be provided. Modules Provided will go. Then you have to follow him and nothing else. Son. Nothing for now. when the time comes I will tell you. Because what happens is that right now I'll tell you at the beginning so you can Will you buy it? then look at the one in the last Let me tell you the reality. tell me a reality Should I give it? what are you saying? I am scared of 12th Is. Navjot Navjot is saying I love you, okay son devyaashi is typing my name is Devyanshi son, I can see that

21:38 Is Look, let me tell you one true thing which you You must have felt in 11th that you are ruining your 11th There can be many reasons behind this. You are the biggest reason for this. but this It must be about the story. probably means majority crowd I don't mean I do this in my time I made a mistake. Who knows? Sir please tell me Which books should I buy? Sir tell me which one Do you want to buy books? Sir had recommended two. son this book otherwise this book or anything else If you don't want to do it then follow my class notes Are. I am a clever minded person. Male man na? what is being taught in the class He will definitely cover it. You have confidence brother Near. Second sir had told me about this book or Then this book. Now the one who gets extra You have to practice and read this book also buy up. The man will note the human class

22:26 He will do it only. He will definitely do the first book also. I will do a second book as well. Buy all three books Took. Up to one chapter of all three books. Others By the time I reached the chapter, I was able to complete two books. Coming to the third chapter, there is only one The book was covered as much as Book One. and four Five to six such chapters as we move forward NCERT was also being done with great difficulty. So I suggest you this right now I do not book anything else at the initial stage The number of questions I get asked will be enough. It will become much more than enough. Your PYQs will cover last 5 years. All the subjects that come in Physics have been given by CBSE Those questions that have been asked will also come, son. And also your NCERT questions will be covered. I will also give you some work I will give it to you. It is not that all the questions I am the one getting it done. yes but class Most of the 80% questions are there in the class

23:12 It will be done. The remaining 20% ​​is yours We will meet at Home as a Homework and that too I will bring it for you, son Have to show it by doing it. Ok? Should I move ahead? move ahead What? move ahead What? Here you go brother. Let's move ahead. Now look at We have charged about the properties We are understanding. Properties of Charge Let's read about it. because no one is If you are going to read anything then There is some information required. go Meaning as an example you can read any book do you read about it or anything Do you read about it? So what is its specialty Is? How does he behave? Any even if you try to test a person How does it support you in difficult situations?

23:58 He supports us in times of laughter and joke doesn't it give? That's how friendship is made Yours. So class means electric. The properties of the charge and the mass We are making a comparison. this comparison is The reason is because we have little idea about it There is already some more idea of ​​the mass here If I get it from here then it will be easy to understand. Like it could have been said for the mass that Sir it is the intrinsic property of these two This can be asked in marks, son. Here Write it down together. Look, I will write it down. Question can be asked in two marks. I am speaking according to my votes. see hear that sir mass is the Intrinsic Properties of Material. Meaning It cannot be opened and shown that Brother this month. it is charged in the same way

24:44 from the intrinsic property of yes It is an intrinsic property of matter. Meaning It will not be opened so that he can see it +2 +2 There is a charge on me. no this Intrinsic property is an intrinsic property It happens. Ok? The second thing that is said is that This is a scalar quantity. Like mass scalar This scalar is just like quantity There is quantity. Scalar means direction There will be no discussion of it. no direction There will be no hassle in this. talking about charge I have been. due to the charge I talk of fields or phenomena or forces I am not doing it. The charge itself is a scalar quantity. Negative to Positive The matter will come but the discussion of direction will be done in this She will not come. Ok? Great thing. now like It was said that mass is always considered

25:30 At least as a positive. Well it is here isn't it The charge is also positive and the charge It is negative also. And this is already I had told you. Sir, the charge on the electron Whatever happens is negative. of the proton The charge on top is positive. Means we heard one thing sir that the charge It can be positive as well as negative Can. While mass is just that and only It will be positive. We know these things. Three Points were scored. All three points are new were not there. If you ask me which of these Which point is new for us? even one No son. Not even one. this is what we read Those are the ones as it is. yes sequence it I must remember if I get two marks If asked. Mostly MCQs from here Will come. The question will not come in two marks But you still remember the story Needed Ok? Let's listen to one more thing. See We used to study there for mass, right?

26:16 The mass is positive and has two mass bearing The objects are placed on top of each other in an attractive way The attractive force that we apply We used to call it gravitational force. Yes We know this. keep writing Keep writing little by little. Look son, someone He is asking where can I get the notes? Notes You will get it on the app, son. on the app, next In the topper app, you can see the result of class 12th If you go to the beginning, there will be videos There will be a section next to it for taking notes. You will find the notes there. Ok? Let's come back to the point. like here for two months The solid object exerts a gravitational force Are. Just like the one who is always attractive Is. Similarly two charges are placed one above the other Apply force. If the charge is of opposite nature If you become an attractive force then it becomes attractive force. So

27:04 Attractive force. means that a negative and A positive one. Opposite nature is attractive. Ok? Are you understanding things sir? I am able to relate to some of it. and if Both are of the same nature meaning that both positive or both negative then each other Will apply repulsive force. what will you plant? Will apply repulsive force. so something like that Is. The name of this force is Coulombic force or else it is called electrostatic force goes. The name given here is Gravitational force. The name given here That is electrostatic force. now how much Does it have magnitude? We do not discuss do. Then we'll move forward a little bit We will discuss this. is it so clear Is it cut? Is this so clear cut? Is? very clear cut Is. Oh wow, who was this with us? The Smiths

27:51 Randhawa. It's Smith, he did the right thing I have answered it sir. that the gravitational one There is force. it can be written as g m1 yes Yes that is correct. m1 m2 divided by r². What is the distance between the two here? But? It is R. Very true. very correct thing Son. very correct talk. Son, who is asking this today? Emotion Asking why there are no classes on the app Is it happening? Son, today is first class, right? It is on YouTube. what are you doing on the app? Come to YouTube. Ok. Now something like that It will happen here as well. I will tell you. what is this It happens. Ok. move ahead What? Hey the app is not working. Something No, son. You should come to YouTube. The first class is on YouTube, right?

28:36 Should I move ahead? Ok. one more question i I am throwing a question at you. see you Are you able to catch up or not? yes? Is there a difference between these two I will ask you a question. Is mass free of charge can be of Is? Is there any mass that is free of charge could it? Meaning the net charge on it should be zero Can. yes or no? yes or no? yes that no no no no no Divya yes yes is also no I have it too son, look I have the bottle this bottle is ok yes okay sir there is some mass in it this is something Its mass will be 100% sir its net

29:22 What will be the charge? I am asking about the net charge I am not talking about positive or negative Am. What will be the net charge? Hey Zero. Oho maybe, maybe someone has There should be mass but there should be no charge. Now its the opposite. could it be that someone has a charge But shouldn't there be mass? Second Question. What could happen that someone You may have charge but no mass yes? Yes. Oh wow! Too much. you caught it You took my point. You caught what I said. So From here, there are no assertive and reason types. This thing is asked in the question. so I I have brought it in the properties, take it in writing I have come from but the question is like this are asked. This question was asked like this goes. See Charge Cannot Exist Without mass. While it is said that mass can

30:10 Exists with zero net charge. net It is written here. don't be confused Son. Net is written. Ok? wrote the net It has happened. Correct, till the point. At once Correct. 100% ok? This question should be asked Can do it for one mark. one mark each care is being taken here because the address We know that a lake is formed drop by drop. Drop by drop an ocean is formed, not a lake. Sarovar will be a Gujarati word, friend. Correct Is? Now look at another good thing The talk about difference will begin. first start What was it that we read in? Neutron With Mass and Without Mass. Ok? The thing about neutrons is correct. Now look at a Listen to me. isn't it between the two We are talking about the difference. in this slide What is it, do you know it's a matter of versus. that these What is the difference between the two? They It's a matter of difference. what was before that What was the same thing in both of them? Similarity

30:56 what was it? dissimilarity in this What is? We are discussing it. here at It used to be that in class 11th you would study like this that when there is mass, any object having mass yes, it is moving at a very high speed At very high speed. Very high speed means His speed is close to the speed of light yes. Then he veries it with its mass. How Does it very? So its equation is given as Sir that m = m Note 1 / There used to be an equation like 1 - v² / c². There used to be an equation that this variable mass where m is the note rest mass that when that What is the mass of the object when it is at rest? will be? this this and when its around the speed of light This is useful only when the speed is very high

31:42 There are things. So mass depends on speed He does. if an object is at the speed of light If he is moving at a speed of around When it is in motion its mass varies. Its magnitude varies. means that Sir, this is mass, it depends on the speed Is. Look, we got one point like this. One Point we got this. and this is the second one Point of versus. So look at this, the second point that when When the charge is in motion its magnitude It does not change depending on the speed doesn't. So the magnitude of the mass Is. listen to me magnitude magnitude its value its magnitude It is independent of speed. Speed ​​Off

32:27 It is independent of the charge. it worked The thing is. This is a matter of work. This is useful. Write it down, son. Write it down, son. this question can be asked. This question be asked Can. It was a Vases thing. This Questions can be asked in MCQ format In the form. this question can be asked is MCQ form In. what is happening brother? Everything will be my son. Everything will be unique and unique. All will be. Be patient, son. Please have some patience. All will be. Ok? Let me summarize. see younger C thing. Existence even without mass charge

33:13 It may happen in. while someone in charge is if he has it then it is very small but The charge will be very small but will have mass. Very small but will have mass. Ok? Charge it is very small but he has a very small It will be small but it will definitely be mass. Ok? Now The second thing was that mass is the speed The magnitude of the mass depends on the speed He does. While the magnitude of the charge is It does not depend on pay. two very small There were points. I told you that. a table You can make this in me also. just this one It was a matter. Ok? What should we take forward? Should we take the matter forward? Now let's look at some basic About the property. Three properties After that the questions will start. Three Property then start the question Will go. Look Hmm. Basic C Property. that sir basic c Property Number One Basic C Property

34:00 Number One that is the additive nature of electric charge Meaning that we have a system. What is it Do you have your son? S Y S T E M . What Do you have this little one? system, if the system The charge on it is plus 3 minus 2 coulomb + 10 coolons okay? you have this much charge Near. So tell me the net charge of this system How much will it be? Tell me the net charge of this system How much will it be? +3 -2 +10 this system What will be the net charge? of all Sam yes if there will be any charge outside +2 then count that will not go. You know that, right? Outside If I write 2 coulombs, then its value is

34:45 Will not be counted. It's a simple matter. Look, 13 is one of them. I removed 11, yes it is a very simple thing. 11 coulombs this is 11 coulombs in the positive. In positive means charge will be added with sign. This is what is written sir that net The charge on a system is algebraic sum. Who sa wala sam? Algebraic sum means sign It will be done equally. did the same with the sign Will go. Now tell me in this system. this system what's in it? 1 2 3 4 5 in this system The minus has five electrons. and this I have one, two, three in my system the proton plus three protons three is the sum of these two

35:31 Will go. So the net charge in this second system What will happen? Net charge in this second system What will happen? See son -5ee + 3 is it ok? written straight forward How much will it cost? 2e in the minus 2e in the minus A lot. Oh wow! 2 Coolum is written. Who? did you write this? who wrote it? priya sangwar This is my mistake, see son. This only There are small mistakes which you have to catch. Do you know what I wrote? Coolum did not write. hey what is the charge of an electron Was? 1.6 * 10 to the power -19 coulombs right? Yes. You have to write E, right? net charge for this written like this Will go. - 2 * 1.6 * 10 raised to power

36:16 -19 coulomb 19 coulomb. It will be written like this. Why brother, it is a simple matter. See five the charge of the electron and that of the three protons Charge. and the charge of the proton and electron It will remain the same. There will be only sign difference so I wrote in minus. it is written in plus Is. Did you understand what I said? What Did you understand what I said? what happened veer? is this my name in veer or Your name is someone Of? oh wow great great great Excellent. Oh wow wow great great great great son -2 coolam Will not done. Who's back now? Dhriti Dhriti

37:03 Ranpura: Yes, we are already understanding quantization. yes. Although it is quantization, right? These are things related to electrons only. Ok? Can I proceed further? move ahead Can you? One more thing, it has a charge The quantization part. of charge The quantization part. second basic c Property. Second, the basic C property For charge. Charge quantization. Hear Listen to me. First, let me explain the story Am. Look First, let me explain the story to you Am. Then I will go by my words. who wrote Don't pay attention to what has happened right now. I This is my advice to you as an elder brother. as a big bro that has it written on it Don't discuss it now. What I am explaining,

37:50 Pay attention to the story I am telling. Then we will focus on our words. Ok? Physics teaches that first you Understand the concept, then it is just a language. then if you put it into words When it comes to serving, it is just a language. You can modify it as per your requirement. See, there is a glass road near you. one of his Nearby is a Glass Road and another one is Silk Road Tikra silk is a silk cloth. what did i do Did? Rubbed them both. God bless both of them Did. Now you know what was there initially To you? The amount of positive charge initially This glass was on the road, equally negative The charge was on this glass road. means that this It was neutral. If I may ask you what is above it What was the net charge? you wrote sir glass The net charge on the road was zero. As much

38:36 Positive as well as negative. 1 2 3 1 2 3 Just as negative. of this silk cloth Should I talk? 1 2 1 2 so on top of this also net How much was the charge? It was 0. The net charge was zero. Ok? Ok. Ok. Listen to my story. I talk You have to listen to what I am telling you. Ok? These things written in words are not big It doesn't matter, son. you can write it to Very comfortably. You can write in your language yes. No, first understand the story. you by yourself You will say that yes, this is true. Now look at What happened was that we rubbed both of them. Both Some phenomena happened in between. Now this would happen that is when there are free electrons inside the atom they are from one place i.e. from each other are motivated to go to another place. when we rub, when we create friction Are. Friction generated between the two or else something happens because of the rubbing

39:21 Energy is generated. that energy from one place to another by consuming electrons Runs away. Who runs away son? Electron. Who runs away son? Electron. Friction What happens? Forget friction. Friction Nothing happens. Friction no we understand No. We don't even know what friction is. What have we done? I rubbed both of them like this Is. Both have Smith sharpened friction. We don't know what friction is. Mistake Go. Correct. We have rubbed them both. Rub God, you understand, right? Ok? now this happened Son That you understand. One means above this glass road this silk jumps with negative charge Coming up on Cloth. In the initial The net charge on both was zero. Ok? Ok? Hear Now what happened is that head is above it the electrons jump over it

40:06 The electrons jumped to another place. Went to another place. it had three electrons It had three negative charges. that height of jump Came to the other side. It came over. Its Came up. Ok. on which the electron Whatever comes will be called negative charge. on top of it Negative charge arrived. How much did it cost? Its Negative charge came up. and what on top of it Came? Positive charge arrived. Ok? where the electrons went from Felt a shortage of electrons. the reason for which Positive charge is dominating. Meaning Positive charge arrived. Initially both They were neutral. And what happened finally, sir? Finally it became a positive charge. different one Negative charge occurred. Ok? Now it has been asked that how much is the net charge here and here What is the net charge? So this is being told

40:53 sir that the negative on this cloth The charge has come, it will be written sir how much Did the electrons arrive? Three electrons came. If three electrons come then 3 * E and this Negative charge and this negative charge. Whereas The charge will be written on the glass rod. How much will it be written? Sir how many electrons went? How much positive charge is left with it now? If you have 3 left, then add 3 and write it Will go. So in short from one place to another electrons will go to some integer You will go into numbers, right? any integer go into numbers. so it is written that sir the charge net that you get is always in the form n * e. They The net charge on a system is n * It is in the form of e. where the number of n The value is in integer. They

41:40 In integers, that means n is equal to plus and -1 + and -2 are available in such types. anytime You won't get to see it like that 1/2 in the negative. ever see it like this you will never get that 3 / 2. Will not get to see it. Is it a small Are you able to understand things? is this You can understand small things yes? Are you able to understand small things? yes? that sir, we will ask a question on this now Your mind will open up even more now. open your mind now Will go. also about the electric field will come. Where did the electrons of the cob go? that is It was neutral, right son? over there it The number of electrons that are there is first positive then second whatever positive charge was there above and above that All the negative charges got cancelled out Was getting out. so its electrons We have not discussed this, son. someone

42:26 It was a good question to ask, but it's okay. Okay okay. Ok. means that sir in The short thing is to remember that whoever You will see the charge. that of q q = ne Will be seen in form. of q = ne Will be seen in form. So it was told the point is that the least possible value of a Charge that can be transferred is charge off Electron. there are three electrons Were transferred. number three of electrons Were transferred. then three electrons Charge will be written whereas here it is written three. Plus three is written here. then it will be told these can integral number of electrons can Only be transferred, integral integers Number. Ok sir. Transfer From One

43:13 Object to another object. that's why We can write charge q = n * e where n = + - 1 2 3 4 will be written like this. not the negative I do not write 1/2 or 3/2 in such numbers Will go. Are you able to understand what I am saying You? Very good thing. So keep writing comments Swaha in the box. question on it now You will do it and you will enjoy it. on top of it right now You will ask questions and it will be great fun. Ok? a small property and read I will give it. after that i question I will get it done. Ok? just now right now Clear crystal clarity will come. Vishwa Have faith in me. Have faith. Crystal clarity will come. Digestion On that part. Solve a small question We give it. see and hear. A third basic C The charge on the property is conserved. Conserved means whatever the initial pay will be

43:58 Finally you have to see the same charge will get. While I give you an example of this Right from the first one. that initial charge How much charge did the glass have over the road? Sir Zero. How much is charged on silk initially? was it sir? Zero. Initial Pay Charge is Zero Zero It was there, right? Yes. Now listen to me. here at What is the final charge? +3. here at What is the final charge? -3. of both Do the summation. Summing up both, back to zero Are getting. listen carefully to what I say To pay attention. What am I saying? initially How much was the charge for this glass rod? Zero. The more positive, the more negative. How much initially on this silk cloth Was there a charge? Zero. as positive as it is Negative. Now finally after rubbing it

44:45 when the story came +3 -3 Summed both back to zero. Its Meaning that initially there is zero on both of them was what we considered as a system and finally Also, when added, it becomes zero. means that Any isolated system above the system The net charge above remains conserved. no change Would do. It is not necessary to be zero. It conserves. Conserve means constant remains. Look back at each example I understand. We have this system. This system has its own system There are two spheres on top of it. two over the system There are balls. Saw the charge on top of the first sphere If we go then these three are three and these two are from the first one The charge will be written above

45:31 q1 is equal to see this is five right Five and this two is as correct as 2e in minus You have to stay with me. how much on it will it be written? killed one by one by plus 2e plus 2e so initially on top of it Charge became zero. Initially on. watch now, By default happened. It is not necessary that every The bar will be zero for the system. If the first Calculating initial pay charges in the system If I go, how much will it charge? be zero Will go. Ok? It is not necessary to be zero, But this is happening in this story. finally also Let's see. See. Finally, both of us Got them both rubbed. Rub both the balls Got it done, brought both of them in contact. So, some electrons run away to another place Went. Like there were five here, so in five Two of them got up and went to this side. out of five

46:18 Two of them got up and went this way. Hear This first What is the charge on the sphere? saw So there are plus three protons. Three A neutron is three electrons. each other Will eat it up. It will become zero. its also beans It will become zero. three electrons three Proton. So this way if I use this system of this sys system this system this system I would like to write back to you to finally tell you how much Will the charge be written? finally how much charge will it be written? So the first one also has zero, The second one's also zero. So zero. So look at What I initially called the system Finally that is also called the system. Initially the charge was zero and finally also The charge is going to zero. What is essential every Are you bar zero? No. It is important here that

47:04 But whatever it is, the charge will be the same here will be. For whom? of isolated systems For. By drawing this boundary it has been told that this The system is for you. then read the statement For an isolated system the net charge remains Constant. This is the electric charge This is the conservation part. These are the three basic C's I have studied property. any of the three Even one property can be asked for in two marks It can. Out of which this quantization is famous It is of this. Out of which this quantization is famous wala Is. Questions are also asked on top of this and apart from this numericals may also be asked Can be done. I told you about the theory. Now We will talk about its questions. First Write it down carefully once. First this

47:49 Write it down properly, son. Write it down. write it very well Son. Write it down, write it down. gave time Son, you need two minutes. Time Gave. Isolated means separated. Meenakshi and Mohan is isolated from the whole world like this no what is electric field son today Will you eat everything, who is this electric person? Field Wala Vaibhav Singh Raghav Vaibhav Singh Raghav Electric field will be known in the next session

48:35 Son Correct Is. Ok? Now look at a question coming. Listening is one thing. this is a neutral There is a body. Injects 10 Raise to power 20 Electrons in a specific process. in A specific process. Find the Charge Acquired by the body. It means that Sir, your What's nearby? I have a body. Here it is Have a neutral body. Ok? These There is a neutral body. how much is the charge on it is it sir? I don't know sir. It means neutral Plus negative negative positive. See if Someone ask you to be near the neutral body

49:22 If there is charge then yes, the more positive the charge is the same as the negative charge Is. That is why the net charge is written on it. It is zero. That is why net charge is written as zero Is. Listen to this. Ok? and see what else Asked to multiply 10 by the power of 20 The electrons have come out. They Have come out. Look, the first thing is that 10 race to power 20 electrons out Have come out. then q is equal to n e k how many electrons got ejected according to Is? 10 Rays to the Power 20 10 Rays to the Power 20. What is the charge of an electron? 1.6 * 10 Ray to Power 16, 1.6 * 10 Ray to Power -19 Coolum. Ok? so a little bit If we simplify it, it will come out Some 16 coolam. in some calculations

50:08 If you make a mistake, tell me. any calculation If I make a mistake, please tell me. Now one thing Hear Now listen to me once. this charge Will it develop on this body or negative positive In? Tell. This charge will develop on the negative side or positive In? Yes, many children gave the correct answer Gave. but but son unit writing Try it together. Write the unit together Needed Yes, how will both come son? Sindhu negative. Negative, negative, negative. Negative, Positive, positive. Hey, electrons! Throwing it out. means that on top of The number of electrons is decreasing. The number of electrons is decreasing. If

50:56 if the number of electrons decreases then Positive charge will dominate. What does it mean that sir it is no longer neutral but neutral What will happen if I don't stay? become a positive charge Will go. is injecting electrons Taking it out from myself. take out Used to be. So whoever this person might have gone over. There will be this much negative charge on it and How much positive charge is there on this body? Will be done? + as positive as 16 coulomb The charge will develop. So this is your answer will remain. This will be your answer. This is MCQ These are types of questions. Ok? a little I'll give you some practice so that you law of quantization law of quantization It should be easy to use. one more question We have. are you writing together? Are you writing it together? Plus Yes very nice talk. Are you listening or ignoring it? Who

51:43 is this Daring? Yes son, I am listening to you. Take Lyrics. No son, there is no bio class. After this there will be maths class. Ok? I am writing. writing a lot Excellent. Here, solve one question and show me. What do you have? that how many electrons must be removed from a body to make it electrified by a 6.4 Coolum of a Charge. That means we have to charge How much? See what is given In this? what is given in this sir How much should the charge be? must be charged 6.4 Coulomb. now how many electrons do we need will have to be removed so that there is so much on it

52:30 Should the charge develop? Here, tell me. Here, tell me. I have a very simple question. Sir q = do we know the value of ne q or n If you want to find the value then just write q directly / q / know the value of q 6.4 by 1.6 into 10 to the power - 19 coolam ok if it goes up then it is in positive it will go away, just do some cutting and grinding 16 * 2 16 * 3 = 48 16 * 4 = 64 ok so this is four 10 raises to into The power is in the coolant or not in the coolant okay it will go up how much will it be It will go up and it will become plus 19 if you see it Correct The calculation is correct Calculations

53:16 yes how did four come Son 4 * correct correct correct not correct son, learn from the rest of the session Education is your name, Shiksha Sharma baki You will find the classes on the app Start Bench I will meet you on you are fine very good thing so Electrons have to be injected only then this The charge can be developed only then the charge mentioned The charge in question has been developed Can be done. These are such MCQ type there are questions okay so more I I am not writing any theoretical things in it yes this is MCQ type question. Correct Is. I will pass it on talk. Hey let's move the story forward. One And let's ask more questions. you give me the answer to this Will you tell which one will it be A B C D? Correct

54:02 What will be the answer? an object has a Charge 1 coulomb. Ok? do you have it Elder brother? Golu Bhai, you have a coulomb charge of. Charge of 1 coulomb. It has now been told It seems that Gains is gaining something. What Are you gaining? Sir gain some electrons doing. how many electrons are you gaining Is? 5 * 10 to the power 18 electrons gained I am doing Is. Net charge on an object becomes now I have to tell you how much the net charge will be. Here, tell me tell tell tell tell tell tell tell tell tell d d d d d d d d daya sister daya ban daya ban daya babna daya daya sister

54:51 AIDS is coming. Hey, this is wrong. Sir I was not counting but AIDS came in between Went. One Brother has left after giving me a bottle of water. But the bottle is not opening. open Went. Your hands were wet, right son? so less friction seemed to. A so son those children who are getting A answer Look here, see what has happened here That means sir it is gaining electrons how much charge is it gaining in the first place Discussion on how much charge it is gaining We do. Then, q =

55:38 n see n we know 5 * 10 ray to the power 18 or 1.6 * 10 re to the power 19 ok now let's simplify it a bit will 8 or ok leave the simple thing like this okay this is eight here eight here okay 10 re to the power minus one this 18 or 19 18 plus I simplified minus 19 to minus one will be written as minus minus 1 coulomb Will go. So Sir, I wrote .8 coulomb. Now brother this is an electron right, it means That they might be coming with minus charges. If you are bringing minus charge then sir go ahead Write the negative sign. Further negative charge Meaning, write the sign. so already have it

56:24 There was a charge of one coulomb. how much charge now Coming up to it? in minus in minus .8 then it will be written as q net is equal to 1 Coulomb plus and minus .8 Coulomb. Simplified, it will be written in plus .2 Coolum. That's why the right option is D. Somebody's child had given this answer. just that For this it was told that point means The point eight that you write in minus is half This is an incomplete answer, son. If this neutral body If it were, then your answer would have been correct. but told the thing Has been. very nice. Those who d answer have given those to those people Congratulations to him, what else, son? reward Loge What? so let's move the story forward

57:10 Are. Yes. A small topic is given Conductors and insulators. question on it I will come back but right now we will discuss Let's move towards small topics. I am asking some questions now So that you get a grip on that concept Let's go back to the good questions do. Ok? Now look at the conductor and A small thing is mentioned on the insulator In NCERT. Although it is not covered in these details We also read in the second chapter but I have told some light things here too Is. So don't feel like you haven't read it Is. It is given in the chapter. So look at the conductor What happens? And what is an insulator. So sir we know one simple thing that conductor through which electricity passes Could. insulator from which electricity Could not pass. this is us in lower standard used to study. But learning and understanding this much is not enough It happens. As you progress in classes

57:55 You move forward standard wise, level wise I want to give you logical reasons where you are moving forward Why does it happen? why is this It happens? A logical answer has to be given. You If it happens then it happens? No son, it's logical. Give me an answer. So son, it is with the conductors, right? There are free electrons. of the conductor What are passes? free electrons There are. Like the last orbit of the atom there are electrons there right the free ones, shake them a little So they can run away too lattice structure You can also roam around in it. look at these little ones I write these in small different colours. These These are small free electrons electrons these free electrons these free electrons these free electrons these free electrons these free Electrons. so conductors are material in which outer electrons of each atom and These molecules are weekly bound. These

58:40 They are weekly bound. I mean sir this is free There are. A little bit of this lattice structure I can roam around like this. such a tremendous There is no compulsion that I will not run away. But sir there are free electrons here Are. While in an insulator such There are very few free electrons. These Electrons are weekly bound, right? I mean it's free brother yes okay you You can wander around here and there. It is here isn't it There are very few such free electrons. So it is told which all electrons are Tightly Bound. bound very tight Has gone. now the electron is around here Couldn't move around. See it is tightly bound. Now both have their own specialities. As such It is not that the conductor is a superhero and He is an insulator, he is a villain. no such thing Not there. Both have their own uses. Everyone has their own work. If electricity is If you want to pass it, you can directly touch someone You can't even do that, right? then you need an insulator

59:27 If you need it then see, it also has an application I have brought the part. Conductor we know sir To pass the electricity, its There is need. Now the thing is that free What is the need of electrons? so this Who takes the electricity? Sir Electricity is the flow of electrons. these are the free electrons They take electricity with them. Ahead Let us increase it. That is why the conductor Electricity can be passed easily. Why? because there are free electrons There are more. You can write in the application Wire to pass electricity Can be used for the purpose. here at insulator we know sir that these are for both Some current mistakes here and there in between If it does not happen then separate it with an insulator Can be done. Now look, this is the story that we don't have to separate the conductor a little bit Give it a lot of charge, both are neutral. listen listen to me. In the initial

1:00:12 There is no charge on the conductor. They It's ready. If you want to get electricity passed then I am ready. Any time anybody I'm ready. The conductor thinks so but he has There is no charging right now. listen to my story and No matter which insulator comes, I will not charge I will let it flow. He has such a mentality Is. Right now initially there is no one above this There is no charging. Now what have we done to Gave charge to both of them. I also told the conductor Here you go son, I will give you the charge for 5 coolam. Let's see what you can do. And Tell the insulator to give you 5 coolam, son I charge ₹. what can you do then Let's see. one story is free of electrons. Ok? now the second story That this is what happens, that was the story. Now I What happens if I charge him separately? Is? So the conductor said that if I

1:00:58 If a separate charge is given then I will pay that charge spread it with all my brothers and sisters Give. That means I am on the surface of that conductor I will get this charge flowed over it. See that's when some charge is transferred to the conductor it's ready Radially gets disturbed over the entire Surface means this charge is on the whole surface It will be distributed. this is complete The charge will be distributed. Conductor If you want to take the best example of this then it is from metal. When the same charge is given on the insulator. The insulator said la son 5 coulomb. The insulator said okay. how much is he giving 5 Coolum. no problem baby. 5 Coolam Yours Kept it nearby. not distributed anywhere Is. That means sir if the charge on the insulator if it is given then it should be given only there where it is given

1:01:45 on the surface on which it is given, then it is there will remain. Ok? So, let me make a circle This is an insulator. This is an insulator. Now you have Charged only here. so this is the place It will remain on. This will prevent him from running back and forth. While you have a conductor, so the conductor above you paid the charge here five Coolum. So this is five coulombs, it's everywhere It will be distributed. like this like this It will be distributed. very simple c Story. Ok? This is something mentioned in NCERT She had told me so out of respect for that we I have told the matter. This is however if your chapter If any test of forest comes then give two Questions can be asked in marks Is. There is one question for two marks can be asked or MCQs can be come from here Can be done. MCQs may be asked. These Where quantization was asked, Numericals can definitely be made. no one from here

1:02:30 Son, you will not become numerical. this bus Can be used for MCQ purpose. Its properties are those we are going to go further In the chapters, there is the second chapter And quite a lot in the third chapters too We will use it from point of view. Ok? This only It was the story of conductors. this was the story Of the conductors. Now the third thing is the method of of charging. What is? Method of charging. Now this is the charging method from earlier It used to be in NCERT in that much detail now I have not given anything. Methods of Charging does not give much detail about It has been kept. But if you are good enough If you are preparing then you should do some light work. There should be an idea of ​​what happens. Although Aldo don't read it in detail then You will also find one or two examples that Where you can understand it very easily From. But still, we proceed with understanding. See Any body can be charged in three ways

1:03:15 Can be done. any meaning will do How to charge an insulator and a conductor

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