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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Download Study Notes for CBSE Class 9 Maths Chapter 2 Polynomials
Last modified on:3 years agoReading Time:13Minutes[PDF] Download Study Notes for CBSE Class 9 Maths Chapter 2 Polynomials Here we are providing maths study notes for CBSE class 9. In this article, we are covering study notes for cbse class 9 maths chapter 2 Polynomials. Brief Introduction of Each Chapter in CBSE Class 9 Maths: Reasons Why…
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Download Study Notes for CBSE Class 9 Maths Chapter 1 Number Systems
Last modified on:3 years agoReading Time:13Minutes[PDF] Download Study Notes for CBSE Class 9 Maths Chapter 1 Number Systems Here we are providing maths study notes for CBSE class 9. In this article, we are covering study notes for cbse class 9 maths chapter 1 number systems. Brief Introduction of Each Chapter in CBSE Class 9 Maths:…
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Download Study Notes for CBSE Class 9 Maths
Last modified on:3 years agoReading Time:13MinutesDownload Study Notes for CBSE Class 9 Maths Here we are providing maths study notes for CBSE class 9. Click on the chapter to view the study notes. The following topics are covered in CBSE Class 9 Maths: These topics are prescribed by the Central Board of Secondary Education (CBSE) and…
