A current carrying wire is placed in the...

A current carrying wire is placed in the grooves of an insulating semicircular disc of radius 'R', as shown in Fig. The current enters at point A and leaves from point B. Determine the magnetic field at Point D.

A

`(mu_(0)I)/(8piRsqrt3)`

B

`(mu_(0)I)/(4piRsqrt3)`

C

`(sqrt3mu_(0)I)/(4piR)`

D

none of these

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The correct Answer is:

B

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