Part-1: Electric Charges and Fields | Physics | Class 12 | CBSE Syllabus
class="paragraph">today we are going to discuss about
fieldswe know that every substance is made up of atoms a substance means collection of atoms and atoms are collection of fundamental
particles what are those fundamental
particles protons electrons and neutrons atoms are collection of fundamental
particles what are those fundamental
particles they are stated like this fundamental
particles our first one proton second one electron third one Neutron these three
particles are called as fundamental
particles before going to discuss about the main content we should know some of the basics of atomic structure we know that proton and neutron P and again exist in the nucleus that's why these two are corners nucleons without the proton and neutron exist in the nucleus there so they are called nucleons whatever the electron electrons revolve around the nucleus these fundamental
classified based on they charged protons neutrons electrons are
classified based on the
chargesfirst of all we should know what is charged here we are going to the main concept what is
electriccharge proton is positively charged electron is negatively charged neutron is neutrally charged what is charged proton is positively charged electron is negatively charged neutron is neutrally charged what is
electriccharge the excess our deficiency the excess or deficiency of electrons on your body is called
electriccharge of electrons on your body is called
electriccharge see here excess or...
class="paragraph">deficiency of electrons that means some objects may have the excess number of electrons some objects lack of electrons this excess amount of electrons are electrons are given by any substance that of substance is called negatively charged if any substance having lack of electrons that substance is called positively charged we are going to see the some examples of this electrification and charging as we are already discussing about the
electriccharge excess or deficiency of electrons is called
chargestwo types positively charged and negatively charged and negative charge what is the meaning of positive charge if any substance is losing the electrons in any process of electrification the substance is called positively charged and I'm repeating if any substance is losing the electrons in any process of electrification that is called as positively charged body if any substance gaining the electrons in any process of the electrification the body is called as negatively charged body so positively charged body means loss of electrons positive charge means loss of electrons according to the definition deficiency of electrons negative charge gain of electrons are excess of electrons gain of electrons are excess of electrons how these electrons are any charge
particles will transfer from one body to the another body or one atom to the another atom or one substance with another as substance there are three different ways of charging a body those are called as...
class="paragraph">first one induction second one conduction first one induction second one conduction third one friction why we are dealing with these three topics yes see the definitions loss of electrons or gain of electrons how a body can lose their plant and how a body can gain the electrons there is a process called electrification or charging a body these three are called has different ways of charging a body in these three ways any one way is possible to loss of electrons are gain of electrons that's why these three are collectively called as ways of charging a body how the charge will transfer an induction process how the charge will transfer in conduction process how the charge will transfer in friction process we are going to be in the next now we are going to discuss about charging by election listen carefully what is charging by induction take a neutral body means the total charge of that body is zero neutral and we want to charge it and this neutral body will be charged by another charged body without making any physical contact between them that means it will be like this charge in a neutral body charging a neutral body by another charged body without making any physical contact between them contact between that means take a body its charge is zero nothing but neutral now I want to inject the charge to this neutral body for this purpose I am placing another charged body which is close to the neutral body but not any physical contact means these two bodies are not at all in...
class="paragraph">contact they are separated by some distance and this is a charged body the charge which is present in this charged body can develop and induce a charge in the neutral body that's why the charge developed in the neutral body is called the usual charge but the charge which is present in the charged body is called inducing charge again I am saying this is a neutral body now I want to charge it that's why I am placing a charged body by maintaining some gap and as already I said that there is no physical candidate between these two bodies the charge which is present in the charged body is called inducing charge this inducing charge can produce an the inducer charged in like this a neutral body can be charged next process charging by conduction what is the meaning of charging by conduction a neutral body as usual it should be charged that's why we are placing this neutral body in contact with the charged body see this one conduction what is the meaning of conduction conduction means the flow of electrons from source to receiver if you see the
electriccircuits in our domestics okay source and receiver all are connected to the wires that means whenever the
chargestrans started to transfer from the source it should be reached through the receiver through the whites that means there is a physical contact between the source and receiver through the whites such like that if a neutral body should be charged this neutral body should place in contact with the charged body then...
class="paragraph">only the conduction process will be possible so the way of charging a neutral body by placing in contact with a charged body is called conduction so let me write the definition the way of charging a neutral body by placing it in contact with a charge the body see this one the way of charging a neutral body by placing it in contact with the charged body is called conduction process we already discussed induction there there is no contact they are separated induce a charge and inducing charge the related like this and here conduction source and receiver are in contact maybe this diagram can be written like this neutral body charged body best example for the conduction yes we are keeping our Mobile's to be charged whenever the power is going to decrease to the some exchanger level who are keeping to the club that means that mobile is under the charging process what is the way of charging in this case charging through conduction because the source and the receiver are made in contact to the plaque if you liked this video please give a thumbs up please subscribe to our channel to get more videos on CBSE