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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Charging of Insulators
Last modified on:4 years agoReading Time:2Minutes 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…
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Charging by Contact
Last modified on:4 years agoReading Time:2Minutes Charging by Contact When a negatively charged ebonite rod is rubbed on a metal object, such as a sphere, some of the excess electrons from the rod are transferred to the sphere. Once the electrons are on the metal sphere, where they can move readily, they repel one another and…
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Charging by Rubbing
Last modified on:4 years agoReading Time:3Minutes Charging by Rubbing The simplest way to charge certain bodies is to rub them against each other. When a glass rod is rubbed with a silk cloth, the glass rod acquires some positive charge and the silk cloth acquires negative charge by the same amount. The explanation of appearance of…
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Questions on Kinematics (Class 11 Physics)
Last modified on:5 years agoReading Time:6MinutesQUESTIONS If a particle is accelerating, it is either speeding up or speeding down. Do you agree with this statement? Two balls of different masses are thrown vertically upwards with the same speed. They pass through the point of projection in their downward motion with the same speed. Do you agree…
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How to Make Notes for CBSE 12 Board Exams???
Last modified on:5 years agoReading Time:6Minutes☞ Are you going to appear in the CBSE 12 Board Exams Next Year? ➽ There is a great role of making notes to secure good marks in 12 board examination. Do you know that how to prepare notes for class 12 board exams? If you answer is no, then read…
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Questions on Magnetism (Class 12 Physics)
Last modified on:5 years agoReading Time:3MinutesQUESTIONS A charged particle moving in a perpendicular uniform magnetic field penetrates a layer of lead and thereby loses half of its kinetic energy. How will the radius of curvature of its path changes. The energy of a charged particle moving in a uniform magnetic field does not change, why ?…
