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A short bar magnet is placed with its no...

A short bar magnet is placed with its north pole pointing south. The neutral point is `10cm` away from the centre of the magnet. If `H=0*4` gauss, calculate magnetic moment of the magnet.

A

`2 Am^(2)`

B

`1 Am^(2)`

C

`0.1 Am^(2)`

D

`0.2 Am^(2)`

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