A) neither a force nor a torque
B) a force and a torque
C) a torque but not a force
D) a force but not a torque
Correct Answer: B
Solution :
If the magnet is placed in a non-uniform magnetic field, the force acting on the north and south poles of the magnet are not equal in magnitude (although they are opposite in direction). Thus, on the <magnet, in addition to a torque, a resultant force will also act. The torque will tend to rotate the magnet in the direction of magnetic field, but the resultant force will have a tendency to produce a linear displacement of the magnet.
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