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A large sheet carries uniform surface ch...

A large sheet carries uniform surface charge density `sigma` . A rod of length 2l has a linear charge density `lambda` on one half and `-lambda` on the second half. The rod is hinged at the midpoint O and makes an angle `theta` with the normal to the sheet. The torque experience by the rod is

A

`(sigma lamdal)/(2 epsilon_(0))`

B

`(sigma lamdal^(2))/(2 epsilon_(0))`

C

`(sigma lamda l^(2))/(epsilon_(0))`

D

`(sigma lamdal)/(epsilon_(0))`

Text Solution

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The correct Answer is:
B
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