An equilateral triangle of side length l...

An equilateral triangle of side length `l` is formed from a piece of wire of uniform resistance. The current `I` is as shown in figure. Find the magnitude of the magnetic field at its centre `O`.

A

`(sqrt(3)mu_(0)I)/(2pil)`

B

`(3sqrt(3)mu_(0)I)/(2pil)`

C

`(mu_(0)I)/(2pil)`

D

zero

Text Solution

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The correct Answer is:

D

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