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A uniform wire is bent in the form of a ...

A uniform wire is bent in the form of a circle of radius `R`. A current `I` enters at `A` and leaves at `C` as shown in the figure :
If the length `ABC` is half of the length `ADC`, the magnetic field at the centre `O` will be

A

Zero

B

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

C

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

D

`(mu_(0)I)/(6R)`

Text Solution

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The correct Answer is:
A
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