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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Topicwise Questions and Answers for Class 9 Science Chapter 5 The Fundamental Unit of Life
Last modified on:3 years agoReading Time:4MinutesTopicwise Questions and Answers for Class 9 Science Chapter 5 The Fundamental Unit of Life Here we are providing topicwise questions and answers for cbse class 9 science. In this article, we are covering topicwise questions and answers for class 9 science Chapter 5 The Fundamental Unit of Life. Benefits of…
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Topicwise Questions and Answers for Class 9 Science Chapter 6 Tissues
Last modified on:3 years agoReading Time:4MinutesTopicwise Questions and Answers for Class 9 Science Chapter 6 Tissues Here we are providing topicwise questions and answers for cbse class 9 science. In this article, we are covering topicwise questions and answers for class 9 science Chapter 6 Tissues. Benefits of Topicwise Questions and Answers for CBSE Class 9…
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Topicwise Questions and Answers for Class 9 Science Chapter 1 Matter in Our Surroundings
Last modified on:3 years agoReading Time:4MinutesTopicwise Questions and Answers for Class 9 Science Chapter 1 Matter in Our Surroundings Here we are providing topicwise questions and answers for cbse class 9 science. In this article, we are covering topicwise questions and answers for class 9 science chapter 1 matter in our surroundings. Benefits of Topicwise Questions…
