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Doubt & Answer Explanation

Doubt

A magnetic needle is kept in a nonuniform magnetic feild . It experiences -
a force or a torque or both???
why??

Answer Explanation

If magnetic needle is in uniform magnrtic field it will experience net zero force. but it may experience net non zero torque.
IN non uniform magnrtic field  the net force will be non zero and net torque may or may not be non zero. It is  same as an electric dipole in electric field. HERE magnetic needle is a magnetic dipole. you can go and check the theory part.

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