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Calculate the work done in deflecting a ...

Calculate the work done in deflecting a small magnet of magnetic moment `10Am^(2)` through `180^(@)` from a uniform magnetic field of strength `0.4 xx 10^(-4)T`.

A

`8 xx 10^(-4)J`

B

zero

C

`4 xx 10^(-4)J`

D

None of these

Text Solution

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The correct Answer is:
A
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