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A circular loop has a radius of 5 cm and...

A circular loop has a radius of 5 cm and it is carrying a current of 0.1 amp. Its magnetic moment is

A

`1.32xx10^(-2) amp.-m^(2)`

B

`2.62xx10^(-4) amp.-m^(2)`

C

`5.52xx10^(-4) amp.-m^(2)`

D

`7.85xx10^(-4) amp.-m^(2)`

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