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Fig shows a wire of arbitrary shape carr...

Fig shows a wire of arbitrary shape carrying a current i between points a and b. The length of the wire is L and the distance between points a and b is d. The wire lies in a plane at right angles to z uniform magnetic field B. The force on the curve wire is -

A

iLB

B

idB

C

`i(L-d)B`

D

None of these

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The correct Answer is:
B
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