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 Biology Chapter 1 Reproduction in Organisms
Last modified on:4 years agoReading Time:14MinutesMCQ Questions for Class 12 Biology Chapter 1 Reproduction in Organisms Q.1. The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because(a) offspring do not possess exact copies of parental DNA(b) DNA of only one parent is copied and passed on to the offspring(c) offspring are formed at…
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Circular Motion Revision Notes for JEE Main Physics
Last modified on:4 years agoReading Time:2MinutesCircular Motion Revision Notes for JEE Main Physics Here we are providing revision notes for JEE Main Physics Chapter Circular Motion. This revision notes on Circular Motion covers all important facts and formulae. Students can use these revision notes for their last minute preparation. This helps in covering the whole chapter…
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Projectile Motion Revision Notes for JEE Main Physics
Last modified on:4 years agoReading Time:2MinutesProjectile Motion Revision Notes for JEE Main Physics Here we are providing revision notes for JEE Main Physics Chapter Projectile Motion. This revision notes on Projectile Motion covers all important facts and formulae. Students can use these revision notes for their last minute preparation. This helps in covering the whole chapter…
