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 and Reason Questions for Class 9 Maths Chapter 13 Surface Areas and Volumes
Last modified on:3 years agoReading Time:1MinuteAssertion and Reason Questions for Class 9 Maths Chapter 13 Surface Areas and Volumes Here we are providing assertion reason questions for Class 9 Maths Chapter 13 Surface Areas and Volumes. Related Posts
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Assertion and Reason Questions for Class 9 Maths Chapter 12 Heron’s Formula
Last modified on:3 years agoReading Time:3MinutesAssertion and Reason Questions for Class 9 Maths Chapter 12 Heron’s Formula Here we are providing assertion reason questions for Class 9 Maths Chapter 12 Heron’s Formula. Directions: In the following questions as Assertion (A) is given followed by a Reason (R). Mark your responses from the following options.(A) Both Assertion…
