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 CBSE Class 11 Geography
Last modified on:2 years agoReading Time:7Minutes Case Study Questions for CBSE Class 11 Geography Taking a close look at the CBSE Sample Papers and Marking Scheme, we have pointed out the important topics for CBSE case study questions in Class 11 Geography. This is crucial info for students because it gives them a heads-up on changes…
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Case Study Questions for CBSE Class 11 History
Last modified on:2 years agoReading Time:9Minutes Case Study Questions for CBSE Class 11 History Taking a close look at the CBSE Sample Papers and Marking Scheme, we have pointed out the important topics for CBSE case study questions in Class 11 History. This is crucial info for students because it gives them a heads-up on changes…
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MCQ Questions for Class 12 Physical Education Chapter 10 Training in Sports
Last modified on:2 years agoReading Time:6Minutes [PDF] Download MCQ Questions for Class 12 Physical Education Chapter 10 Training in Sports “We have compiled a set of Multiple Choice Questions (MCQs) with answers for Class 12 Physical Education, aligned with the latest CBSE board syllabus. These MCQs cover all chapters and are designed to assist you in…
