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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PowerPoint Presentations for Online Teaching
Last modified on:1 month agoReading Time:4Minutes [Download] PowerPoint Presentations for Online Teaching We are providing PowerPoint Presentations (PPTs) for class 6 to 12. The list of available Presentations (PPTs) is given below. Just click on the link for more details. List of Available PowerPoint Presentations (PPTs) Class and Subjects Why Use Our PPTs for Online Teaching?…
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MCQ Questions for ICSE Class 10 Physics Chapter 10 Magnetic Effect of Current
Last modified on:4 years agoReading Time:8MinutesMCQ Questions for ICSE Class 10 Physics Chapter 10 Magnetic Effect of Current Here we are providing MCQ Questions for ICSE Class 10 Physics Chapter 10 Magnetic Effect of Current. This covers questions from the entire chapter. Practicing these questions will help students to get to the root of each topics. This…
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MCQ Questions for ICSE Class 10 Physics Chapter 9 Electric Power and Household Circuit
Last modified on:4 years agoReading Time:5MinutesMCQ Questions for ICSE Class 10 Physics Chapter 9 Electric Power and Household Circuit Here we are providing MCQ Questions for ICSE Class 10 Physics Chapter 9 Electric Power and Household Circuit. This covers questions from the entire chapter. Practicing these questions will help students to get to the root of each topics.…
