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 6 Science Chapter 15 Air Around Us
Last modified on:3 years agoReading Time:11Minutes [Download] Assertion Reason Questions for Class 6 Science Chapter 15 Air Around Us Here we are providing assertion reason questions for Class 6 Science Chapter 15 Air Around Us. Directions: The question below consists of an assertion and a Reason. Use the following key to choose the appropriate answer.(a) Both…
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CBSE Class 12 Physics Exam 2024 Question Paper and Answer Key
Last modified on:3 years agoReading Time:10Minutes CBSE Class 12 Physics Exam 2024 Question Paper and Answer Key The CBSE Class 12 Physics examination, held on March 4th, 2024, has concluded, and students who appeared for the exam can now access the answer key for all sets. The answer key for CBSE Class 12 Physics Exam 2024…
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Training and Doping in Sports Case Study Questions for Class 11 Physical Education Chapter 10
Last modified on:3 years agoReading Time:8Minutes [PDF] Download Case Study Questions for Class 11 Physical Education Chapter 10 Training and Doping in Sports Physical Education plays a significant role in imparting knowledge about body motion and methods to enhance flexibility, subsequently benefiting an individual’s mental and physical capabilities. Here you will find case study based questions…
