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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Revision Notes for Class 11 Physics Chapter 3 Motion in a Straight Line
Last modified on:4 years agoReading Time:1MinuteHere we are providing Revision Notes for Class 11 Physics Motion in a Straight Line. These revision notes covers all important points and formulas of the chapter. Tips and Tricks are also included. These notes will help students to cover all important points and formulas of Motion in a Straight Line…
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Revision Notes for Class 11 Physics Chapter 2 Units and Measurements
Last modified on:4 years agoReading Time:1MinuteHere we are providing Revision Notes for Class 11 Physics Units and Measurements. These revision notes covers all important points and formulas of the chapter. Tips and Tricks are also included. These notes will help students to cover all important points and formulas of Units and Measurements in a very short…
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Revision Notes for Class 11 Physics Vectors
Last modified on:4 years agoReading Time:4MinutesHere we are providing revision notes for class 11 physics vectors. These revision notes covers all important points and formulas of the chapter. Tips and Tricks are also included. These are the most preferred revision notes. It is very important for a student to make proper revision notes of the subject.…
