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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Class 10 Science Latest Sample Papers 2022-23 with Answers
Last modified on:4 years agoReading Time:5MinutesCBSE has already uploaded sample question papers and marking schemes for all subjects of class 10 on its official website. You can download official sample question papers for all subjects from CBSE official website. Students must follow the official question paper to understand the level and type of questions that can…
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Objective Question Bank for Class 12 Physics
Last modified on:3 years agoReading Time:4MinutesAre you looking for Objective Question Bank for Class 12 Physics? If yes, then you have come to the best place. Here we are providing Objective Question Bank for Class 12 Physics. This Objective Question Bank contains different type of objective questions like MCQs, Case Study, Passage Based & Assertion Reason Type Questions.…
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Revision Notes for Class 12 Business Studies Chapter 10 Financial Market
Last modified on:4 years agoReading Time:24MinutesRevision Notes for Class 12 Business Studies Chapter 10 Financial Market Here we are providing Revision Notes for Class 12 Business Studies Chapter 10 Financial Market. These are the important points related to the chapter. Students should remember these points. INTRODUCTION The existence of well developed financial markets is indispensable for…
