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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Assertion Reason Questions for Class 7 Science Chapter 8 Winds Storms and Cyclones
Last modified on:3 years agoReading Time:12Minutes[Download] Assertion Reason Questions for Class 7 Science Chapter 8 Winds Storms and Cyclones Here we are providing assertion reason questions for Chapter 8 Winds Storms and Cyclones. Directions: The question below consists of an assertion and a Reason. Use the following key to choose the appropriate answer.(a) Both A and…
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Assertion Reason Questions for Class 7 Science Chapter 7 Weather Climate and Adaptation of Animals to Climate
Last modified on:3 years agoReading Time:13Minutes[Download] Assertion Reason Questions for Class 7 Science Chapter 7 Weather Climate and Adaptation of Animals to Climate Here we are providing assertion reason questions for Class 7 Science Chapter 7 Weather Climate and Adaptation of Animals to Climate Directions: The question below consists of an assertion and a Reason. Use…
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Study Package for ICSE Class 6 Physics
Last modified on:3 years agoReading Time:7MinutesMaster ICSE Class 6 Physics with Our Comprehensive eBook Are you a Class 6 student studying under the ICSE (Indian Certificate of Secondary Education) curriculum? Are you looking for a reliable and comprehensive resource to help you excel in Physics? Look no further! Our eBook, specially designed for ICSE Class 6…
