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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Case Study Questions for Class 8 Maths Chapter 15 Introduction to Graphs
Last modified on:3 years agoReading Time:1MinuteCase Study Questions for Class 8 Maths Chapter 15 Introduction to Graphs Here we are providing Case Study questions for Class 8 Maths Chapter 15 Introduction to Graphs. Maths Class 8 Chapter 15 Introduction to Graphs Maths CBSE Class 8 Chapter Covered Class 8 Maths Chapter 15 Topics Type of Questions…
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Case Study Questions for Class 8 Maths Chapter 14 Factorisation
Last modified on:3 years agoReading Time:1MinuteCase Study Questions for Class 8 Maths Chapter 14 Factorisation Here we are providing Case Study questions for Class 8 Maths Chapter 14 Factorisation. Maths Class 8 Chapter 14 Factorisation Maths CBSE Class 8 Chapter Covered Class 8 Maths Chapter 14 Topics Type of Questions Case Study Questions Questions with Answers…
