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
Last modified on:3 years agoReading Time:6Minutes [PDF] Download Revision Notes for Class 8 Science 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 CBSE class 8…
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Extra Questions for Class 8 Science Chapter 12 Friction
Last modified on:3 years agoReading Time:7Minutes[PDF] Extra Questions for Class 8 Science Chapter 12 Friction Here we are providing extra questions for CBSE Class 8 Science Chapter 12 Friction. In the pursuit of a comprehensive understanding of CBSE Class 8 Science Chapter 12 “Friction,” practicing extra questions emerges as a valuable strategy. Students are suggested to…
