Magnetic field due to currentHard
Question
The time period of oscillation of a magnet in vibration magnetometer is 1.5 second. The time period of oscillation of another magnet similar in size, shape and mass but having one fourth magnetic moment that of the same place will be:-
Options
A.0.75 sec
B.1.5 sec
C.3.0 sec
D.6.0 sec
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