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A bar magnet of length 21 cm and pole st...

A bar magnet of length 21 cm and pole strength m is placed in a uniform magnetic field , B inclined at angle `'theta'` with the field .
a. What is the force acting on each pole ?
b. Why the magnet gets a rotating effect ?

Text Solution

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a. Force , F = mB where .m. is the pole strength and B is the magnetic induction.
b. Because it is acted by a torque.
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