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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Assertion and Reason Questions for Class 11 Physics Chapter 12 Thermodynamics
Last modified on:4 years agoReading Time:9MinutesAssertion and Reason Questions for Class 11 Physics Chapter 12 Thermodynamics Directions: Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and…
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Assertion and Reason Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter
Last modified on:4 years agoReading Time:8MinutesHere we have provided assertion and reason questions for class 11 physics chapter 11 Thermal Properties of Matter. These questions are prepared by subject experts. Students can use these questions for practice. Assertion and Reason Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter Directions: Each of these questions…
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Assertion and Reason Questions for Class 11 Physics Chapter 15 Waves
Last modified on:4 years agoReading Time:22Minutes Assertion and Reason Questions for Class 11 Physics Chapter 15 Waves Directions: (a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is…
