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Electricity

Blazing goIITian

Joined:	2 Jun 2007
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15 Mar 2008 22:37:41 IST

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369

insulators

None

why do insulators get charged easily by friction ?please explain

require it for my boards ....

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Ashwini

Blazing goIITian

Joined: 4 Nov 2007

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15 Mar 2008 23:29:25 IST

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that is bcoz of accumulation of static charge on the surface of insulator!!

raghu narayanan

Cool goIITian

Joined: 13 Mar 2008

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15 Mar 2008 23:41:59 IST

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ash gal is quite right i too agree with it

Rubbing two non-conductive objects generates a great amount of static electricity. This is not just the result of friction; two non-conductive surfaces can become charged by just being placed one on top of the other. Since most surfaces have a rough texture, it takes longer to achieve charging through contact than through rubbing. Rubbing objects together increases amount of adhesive contact between the two surfaces. Usually insulators, e.g., substances that do not conduct electricity, are good at both generating, and holding, a surface charge

NITESH BASKARAN

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Joined: 29 Sep 2007

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16 Mar 2008 09:20:05 IST

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even conductors would easily get charged provided you dont hold them in your hand because once you do so the metal's potential is brought down to zero immediately
but for non-conductors such a conduction is not possible so electrons cannot flow from the insulator ot earth or earth to insulator so they 'remain charged'.

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