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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 `lamda` on one half and `-lamda` on the second half. The rod is hinged at mid-point O and makes an angle `theta` with the normal to the sheet. The maximum torque experienced by the rod is (if `theta` is variable) :

A

`(sigmalambdal^2)/(2epsilon_0)costheta`

B

`(sigmalambdal)/(2epsilon_0)cos^2theta`

C

`(sigmalambdal^2)/(2epsilon_0)sintheta`

D

`(sigmalambdal)/(2epsilon_0)sin^2theta`

Text Solution

Verified by Experts

The correct Answer is:
C
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