A and B are two points on a uniform ring...

A and B are two points on a uniform ring of radius r. The resistance of the ring is R. `/_AOB = theta` as shown in the figure. The equivalent resistance between points A & B is _______.

A

`(R(2pi - theta))/(4pi)`

B

`(R theta)/(2pi)`

C

`R( 1- (theta)/(2pi))`

D

`(R)/(4pi^(2)) (2pi - theta) 0`

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