If the bar magnet of magnetic moment 
is replaced by a solenoid of cross-sectional area 
and 1000 turns but of the same magnetic moment, the current flowing through the solenoid is
Text Solution
Verified by ExpertsThe correct answer is:
B
Given, magnetic moment of bar magnet,
Number of turns, 
and area, 
Magnetic moment of solenoid, m = NIA
Hence, the current flowing, 
.
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