A bar magnet of magnetic moment M is placed at right angles to a magnetic induction B. If a for

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5.Magnetism and Matter

easy

A bar magnet of magnetic moment $M$ is placed at right angles to a magnetic induction $B.$ If a force $F$ is experienced by each pole of the magnet, the length of the magnet will be

A

$MB/F$

B

$BF/M$

C

$MF/B$

D

$F/MB$

Solution

$FL = MB (=\; Torque) $

$L = MB/F$

Standard 12

Physics

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