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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Revision Notes for Class 8 Science Chapter 10 Reaching the age of Adolescence
Last modified on:3 years agoReading Time:13Minutes [PDF] Download Revision Notes for Class 8 Science Chapter 10 Reaching the age of Adolescence Here we are providing revision notes for class 8 science. We have two types of revision notes for class 8 science (i) Short revision notes (ii) Detailed revision notes. In this article, we are covering…
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Revision Notes for Class 8 Science Chapter 15 Some Natural Phenomena
Last modified on:3 years agoReading Time:14Minutes [PDF] Download Revision Notes for Class 8 Science Chapter 15 Some Natural Phenomena Here we are providing revision notes for class 8 science. We have two types of revision notes for class 8 science (i) Short revision notes (ii) Detailed revision notes. In this article, we are covering short revision…
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Revision Notes for Class 8 Science Chapter 16 Light
Last modified on:3 years agoReading Time:13Minutes [PDF] Download Revision Notes for Class 8 Science Chapter 16 Light Here we are providing revision notes for class 8 science. We have two types of revision notes for class 8 science (i) Short revision notes (ii) Detailed revision notes. In this article, we are covering short revision notes for…
