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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Case Study Questions for Class 9 Science Chapter 1 Matter in Our Surroundings
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An Imperial Capital – Vijayanagara Assertion Reason Questions for CBSE Class 12 History Chapter 7
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India’s External Relations Assertion Reason Questions for CBSE Class 12 Political Science Chapter 11
Last modified on:2 years agoReading Time:5Minutes Assertion Reason Questions for CBSE Class 12 Political Science Chapter 11 India’s External Relations Here we are providing assertion reason questions for CBSE Class 12 Political Science Chapter 11 India’s External Relations. All chapters are covered. Students are suggested to go through each and every question to score better marks…
