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In the figure shown there are two semici...

In the figure shown there are two semicircles of radii `r_(1)` and `r_(2)` in which a current `i` is flowing. The magnetic induction at the centre `O` will be

A

`(mu_(0)i)/r (r_(1)+r_(2))`

B

`(mu_(0)i)/4(r_(1)-r_(2))`

C

`mu_(0)i (r_(1)+r_(2)/(r_(1)r_(2)))`

D

`(mu_(0)i)/4((r_(2)-r_(1))/(r_(1)r_(2)))`

Text Solution

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The correct Answer is:
C
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