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 12 Physical Education Chapter 9 Psychology and Sports
Last modified on:2 years agoReading Time:3Minutes [PDF] Download Assertion Reason Questions for Class 12 Physical Education Chapter 9 Psychology and Sports Physical Education plays a significant role in imparting knowledge about body motion and methods to enhance flexibility, subsequently benefiting an individual’s mental and physical capabilities. Here you will find assertion reason questions for class 12…
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Assertion Reason Questions for Class 12 Physical Education Chapter 8 Biomechanics and Sports
Last modified on:2 years agoReading Time:3Minutes [PDF] Download Assertion Reason Questions for Class 12 Physical Education Chapter 8 Biomechanics and Sports Physical Education plays a significant role in imparting knowledge about body motion and methods to enhance flexibility, subsequently benefiting an individual’s mental and physical capabilities. Here you will find assertion reason questions for class 12…
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Assertion Reason Questions for Class 12 Physical Education Chapter 7 Physiology and Injuries in Sports
Last modified on:2 years agoReading Time:4Minutes [PDF] Download Assertion Reason Questions for Class 12 Physical Education Chapter 7 Physiology and Injuries in Sports Physical Education plays a significant role in imparting knowledge about body motion and methods to enhance flexibility, subsequently benefiting an individual’s mental and physical capabilities. Here you will find assertion reason questions for…
