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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Conceptual Questions Based on Electromagnetic Induction
Last modified on:4 years agoReading Time:7MinutesQ.1. Will an induced emf develop in a conductor, when moved in a direction parallel to the magnetic field ? Solution. No, because the magnetic flux linked with the conductor does not change when it is moved parallel to the magnetic field. Moreover, the magnetic Lorentz force on the free electrons…
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Study Modules for NEET
Last modified on:3 years agoReading Time:3MinutesHere we are providing best study modules for NEET. This well-prepared study modules for NEET can help you to understand each chapter properly. Studying these professionally made study modules can help students to score excellent marks in their exam. All these chapter study modules are available in PDF and PageMaker Format.…
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Chapterwise MCQ Question Bank for JEE Main Chemistry with Answers
Last modified on:3 years agoReading Time:4MinutesChapterwise MCQ Question Bank for JEE Main Chemistry with Answers Here we are providing MCQ Questions for JEE Main Chemistry with Answers and Detailed Explanations. Get this question bank product for your institutes in editable format. This Question Bank containing more than 10,000 questions for JEE Main Chemistry is completely editable.…
