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Magnetic field at the centre of a circul...

Magnetic field at the centre of a circular loop of area A is B . Then magnetic moment of the loop will be

A

`BA^(2)/mu_(0)pi`

B

`BA/mu_(0) sqrt(A)`

C

`BA/mu_(0)pi sqrt(A)`

D

`2BA/mu_(0)sqrt(A/pi)`

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