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The magnetic induction at the centre of ...

The magnetic induction at the centre of a current carrying circular coil of radius `10cm` is `5sqrt(5)` times the magnetic induction at a point on its axis. The distance of the point from the centre of the coil in `m` is

A

0.1 m

B

0.2 m

C

0.05 m

D

0.25 m

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The correct Answer is:
B
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