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a charged ball B hangs from a silk thread S, which makes an angle theta with a large charged conducting sheet P . the surface charge density sigma of the sheet is proportional to a) tan theta b) sin theta

a charged ball B hangs from a silk thread S, which makes an angle theta with a large charged conducting sheet P . the surface charge density sigma of the sheet is proportional to       a) tan theta   b) sin theta

Grade:12

1 Answers

Chetan Mandayam Nayakar
312 Points
9 years ago

the strength of the electric field of an infinite plane charge is independent of the distance from the plane, and it is directly proportional to sigma. Let the constant of proportionality be 'k'

k*sigma*cos(theta)=mgsin(theta)

therefore, sigma is proportional to tan(theta)

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