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A 200 turn closely wound circular coil o...

A 200 turn closely wound circular coil of radius 15 cm carries a current of 4 A. The magnetic moment of this coil is

A

`6.9xx10^(-2) amp-m^(2)`

B

`2.3xx10^(-2) amp-m^(2)`

C

`10^(-2) amp-m^(2)`

D

`10^(-3) amp-m^(2)`

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