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 11 Maths Chapter 11 Conic Sections
Last modified on:3 years agoReading Time:12Minutes[PDF] Download Assertion Reason Questions for Class 11 Maths Chapter 11 Conic Sections Here we are providing assertion reason questions for class 11 maths. In this article, we are covering Class 11 Maths Chapter 11 Conic Sections Assertion Reason Questions. Detailed Solutions are also provided at the end of questions so…
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Assertion Reason Questions for Class 11 Maths Chapter 10 Straight Lines
Last modified on:3 years agoReading Time:12Minutes[PDF] Download Assertion Reason Questions for Class 11 Maths Chapter 10 Straight Lines Here we are providing assertion reason questions for class 11 maths. In this article, we are covering Class 11 Maths Chapter 10 Straight Lines Assertion Reason Questions. Detailed Solutions are also provided at the end of questions so…
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Problems Based on Types of Relation for Class 12 Maths
Last modified on:3 years agoReading Time:8MinutesTypes of Relations Problems Based on Types of Relation for Class 12 Maths Here we are providing problems based on types of relations for class 12 maths. Q 1. Let A = {3, 5} and {7,11}. Let R = {(a, b) : a ∈ A, b ∈ B, a –…
