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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Capacitance Revision Notes for JEE Main Physics
Last modified on:4 years agoReading Time:2MinutesCapacitance Revision Notes for JEE Main Physics Here we are providing revision notes for JEE Main Physics Chapter Capacitance. This revision notes on capacitor covers all important facts and formulae. Students can use these revision notes for their last minute preparation. This helps in covering the whole chapter in just 15…
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[PDF] Download Revision Notes for Class 9 Science Chapter 8 Motion
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Organic Chemistry Important Reagents and Name Reactions
Last modified on:3 years agoReading Time:3MinutesOrganic Chemistry Important Reagents and Name Reactions What is Reagent? A compound or mixture which is added to a system in order to initiate or test a chemical reaction. Reagents are used to determine the presence and absence of specific chemical substances. List of Specific Name Reactions: The list of all…
