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In the following figure a wire bent in t...

In the following figure a wire bent in the form of a regular polygon of `n` sides is inscribed in a circle of radius `a`. Net magnetic field at centre will be

A

`(mu_(0)i)/(2pia)tan.(pi)/(n)`

B

`(mu_(0)ni)/(2pia)tan.(pi)/(n)`

C

`(2)/(pi)(ni)/(a)mu_(0)tan.(pi)/(n)`

D

`(ni)/(2a)mu_(0)tan.(pi)/(n)`

Text Solution

Verified by Experts

The correct Answer is:
B
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