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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MCQ Questions for Class 12 Maths Chapter 13 Probability
Last modified on:3 years agoReading Time:12Minutes[PDF] Download MCQ Questions for Class 12 Maths Chapter 13 Probability MCQ (Multiple Choice Questions) questions are a type of assessment tool used in CBSE Class 12 Maths exams. Here are some notes about MCQ questions for Class 12 Maths: Here in this article, we are covering MCQ Questions for CBSE…
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MCQ Questions for Class 12 Maths Chapter 12 Linear Programming
Last modified on:3 years agoReading Time:12Minutes[PDF] Download MCQ Questions for Class 12 Maths Chapter 12 Linear Programming MCQ (Multiple Choice Questions) questions are a type of assessment tool used in CBSE Class 12 Maths exams. Here are some notes about MCQ questions for Class 12 Maths: Here in this article, we are covering MCQ Questions for…
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MCQ Questions for Class 12 Maths Chapter 11 Three Dimensional Geometry
Last modified on:3 years agoReading Time:13Minutes[PDF] Download MCQ Questions for Class 12 Maths Chapter 11 Three Dimensional Geometry MCQ (Multiple Choice Questions) questions are a type of assessment tool used in CBSE Class 12 Maths exams. Here are some notes about MCQ questions for Class 12 Maths: Here in this article, we are covering MCQ Questions…
