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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Reynolds Number
Last modified on:3 years agoReading Time:10MinutesWhat is Reynolds Number? The Reynolds number (Re) is a dimensionless parameter used in fluid mechanics to characterize the flow of a fluid (liquid or gas) around an object or through a conduit. It relates the inertial forces to the viscous forces in the fluid and helps determine the type of…
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Motion in a plane [Part 2: Questions]
Last modified on:8 years agoReading Time:2Minutes Topic wise Questions Horizontal Projectile Motion [Click here] [STUDY NOTES] Oblique Projectile Motion [Click here] [STUDY NOTES] Non-uniform Circular Motion [Click here] [STUDY NOTES] Uniform Circular Motion [Click…
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Concepts of Physics Ch-10 Rotational Motion (SA)
Last modified on:5 years agoReading Time:1MinuteShort Answer Type Questions
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Concepts of Physics Ch-09 Centre of Mass (SA)
Last modified on:5 years agoReading Time:1MinuteShort Answer Type Questions
