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 Based on Relative Motion
Last modified on:4 years agoReading Time:3MinutesHere we are providing MCQ questions based on relative motion. These questions are useful for CBSE as well as for competitive exams like JEE and NEET. Students can practice these questions to understand the topic well. Solutions are also provided so that students can check their answers by themselves. [PDF] MCQ…
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MCQ Based on Distance and Displacement
Last modified on:4 years agoReading Time:2MinutesHere we are providing MCQ questions based on distance and displacement. These questions are useful for CBSE as well as for competitive exams like JEE and NEET. Students can practice these questions to understand the topic well. Solutions are also provided so that students can check their answers by themselves. [PDF]…
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Revision Notes for Class 11 Physics Chapter 4 Motion in a Plane
Last modified on:4 years agoReading Time:1MinuteHere we are providing Revision Notes for Class 11 Physics Chapter 4 Motion in a Plane. These revision notes covers all important points and formulas of the chapter. Tips and Tricks are also included. These notes will help students to cover all important points and formulas of Motion in a Plane in a…
