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The figure shows three long straight cur...

The figure shows three long straight current carrying conductors. The straight parts are long and the circular part in each case in `((3)/(4))^(th)` of a complete circle, Let `B_(a), B_(b) and B_(c)` represents the strength of field at the centre O in the three cases, then

A

`B_(a) = (mu_(0)i)/(4R) ((3)/(2) + (1)/(pi))`

B

`B_(b) = (mu_(0)i)/(2R) ((3)/(4) - (1)/(pi))`

C

`B_(a) = (mu_(0)i)/(4R) ((3)/(2) - (1)/(pi))`

D

`B_(c) = (3mu_(0)i)/(8R)`

Text Solution

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The correct Answer is:
A, B, D
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