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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MCQ Based on Relative Motion
Last modified on:4 years agoReading Time:3MinutesHere we are providing MCQ questions based on relative motion. These questions are useful for CBSE as well as for competitive exams like JEE and NEET. Students can practice these questions to understand the topic well. Solutions are also provided so that students can check their answers by themselves. [PDF] MCQ…
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MCQ Based on Distance and Displacement
Last modified on:4 years agoReading Time:2MinutesHere we are providing MCQ questions based on distance and displacement. These questions are useful for CBSE as well as for competitive exams like JEE and NEET. Students can practice these questions to understand the topic well. Solutions are also provided so that students can check their answers by themselves. [PDF]…
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Revision Notes for Class 11 Physics Chapter 4 Motion in a Plane
Last modified on:4 years agoReading Time:1MinuteHere we are providing Revision Notes for Class 11 Physics Chapter 4 Motion in a Plane. These revision notes covers all important points and formulas of the chapter. Tips and Tricks are also included. These notes will help students to cover all important points and formulas of Motion in a Plane in a…
