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A staright wire of length (pi^(2)) meter...

A staright wire of length `(pi^(2))` meter is carrying a current of `2A` and the magnetic field due to it is measured at a point distant `1 cm` from it. If the wire is to be bent into a circles and is to carry the same current as before, the ratio of the magnetic field at its centre to that obtained in the first case would be

A

`50 : 1`

B

`1 : 50`

C

`100 : 1`

D

`1 : 100`

Text Solution

Verified by Experts

The correct Answer is:
B
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