Table of Contents
Charging of Insulators
Since charge cannot flow through insulators, neither conduction nor induction can be used to charge, insulators, so in order to charge an insulator friction is used. Whenever an insulator is rubbed against a body exchange of electrons takes place between the two. This results in appearance of equal and opposite charges on the insulator and the other body. Thus the insulator is charged.
For example rubbing of plastic with fur, silk with glass causes charging of these things.
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Conductors and Insulators
Last modified on:4 years agoReading Time:2MinutesConductors and Insulators Solids are mainly classified into two groups, conductors and insulators. In conductors, electric charges are free to move from one place to another, whereas in insulators they are tightly bound to their respective atoms. In an uncharged body, there are equal number of positive and negative charges. The…
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Electric Field Due to a Point Charge
Last modified on:3 years agoReading Time:1MinuteElectric Field Due to a Point Charge The electric field produced by a point charge q can be obtained in general terms from Coulomb’s law.First note that the magnitude of the force exerted by the charge q on a test charge q0 is then divide this value by q0 to obtain…
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Electric Field Due to a Charged Ring
Last modified on:3 years agoReading Time:4MinutesElectric Field Due to a Charged Ring A conducting ring of radius R has a total charge q uniformly distributed over its circumference. We are interested in finding the electric field at point P that lies on the axis of the ring at a distance x from its centre. We divide…
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Capacitance Revision Notes for JEE Main Physics
Last modified on:4 years agoReading Time:2MinutesCapacitance Revision Notes for JEE Main Physics Here we are providing revision notes for JEE Main Physics Chapter Capacitance. This revision notes on capacitor covers all important facts and formulae. Students can use these revision notes for their last minute preparation. This helps in covering the whole chapter in just 15…
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[PDF] Download Revision Notes for Class 9 Science Chapter 8 Motion
Last modified on:4 years agoReading Time:3MinutesDownload Revision Notes for Class 9 Science Chapter 8 Motion A short revision notes of a chapters helps to cover all the important concepts and formula given in the chapter just before the exam. A revision note is basically an overview of complete chapter. This saves our precious time during exam…
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Organic Chemistry Important Reagents and Name Reactions
Last modified on:3 years agoReading Time:3MinutesOrganic Chemistry Important Reagents and Name Reactions What is Reagent? A compound or mixture which is added to a system in order to initiate or test a chemical reaction. Reagents are used to determine the presence and absence of specific chemical substances. List of Specific Name Reactions: The list of all…
