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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Laws of Motion
Last modified on:8 years agoReading Time:1Minute
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RIGID BODY DYNAMICS
Last modified on:8 years agoReading Time:1Minute
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Study Notes for Class 11 Physics Chapter 9 Mechanical Properties of Solids
Last modified on:5 years agoReading Time:10MinutesIntroduction All the rigid bodies are to some extent elastic. This means that their dimensions can be changed by pulling, pushing, twisting or by compressing them. e.g. When a helical spring is gently pulled at its both ends, the length of helical spring increases slightly. When we remove the forces applied…
