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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CBSE 12 Physics NCERT Solution (Ch- 4 Moving Charges & Magnetism)
Last modified on:5 years agoReading Time:9MinutesAll the schools have NCERT books into their curriculum and no other book is recommended. The first preference for any exam is NCERT books be it your board exams, medical entrance exams or the most prestigious UPSC exams. We have tried to provide the most suitable and relevant solution to the…
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CBSE 12 Physics NCERT Solution (Ch-3 Current Electricity)
Last modified on:5 years agoReading Time:1Minute
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CBSE 12 Physics NCERT Solution (Ch-02 Electrostatic Potential & Capacitance)
Last modified on:5 years agoReading Time:1Minute
