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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Conductors and Insulators
Last modified on:4 years agoReading Time:2MinutesConductors and Insulators Solids are mainly classified into two groups, conductors and insulators. In conductors, electric charges are free to move from one place to another, whereas in insulators they are tightly bound to their respective atoms. In an uncharged body, there are equal number of positive and negative charges. The…
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Electric Field Due to a Point Charge
Last modified on:3 years agoReading Time:1MinuteElectric Field Due to a Point Charge The electric field produced by a point charge q can be obtained in general terms from Coulomb’s law.First note that the magnitude of the force exerted by the charge q on a test charge q0 is then divide this value by q0 to obtain…
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Electric Field Due to a Charged Ring
Last modified on:3 years agoReading Time:4MinutesElectric Field Due to a Charged Ring A conducting ring of radius R has a total charge q uniformly distributed over its circumference. We are interested in finding the electric field at point P that lies on the axis of the ring at a distance x from its centre. We divide…
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CBSE 2014 Physics Question Paper for Class 12
Last modified on:8 years agoReading Time:1MinuteQuestion Paper Solution
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NEET Phy SHM (Study Notes)
Last modified on:5 years agoReading Time:3Minutes(1) A motion, which repeats itself over and over again after a regular interval of time is called a periodic motion Revolution of earth around the sun (period one year), Rotation of earth about its polar axis (period one day), Motion of hour’s hand of a clock (period 12-hour) etc are…
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CBSE 2015 Physics for Class 12
Last modified on:8 years agoReading Time:1MinuteQuestion paper Solution
