A square loop is carrying a steady current 
and the magnitude of its magnetic dipole moment is 
If this square loop is changed to a circular loop and it carries the same current, the magnitude of the magnetic dipole moment of circular loop will be:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
JEE Main 2019
Let a be the area of the square and 
be the radius of circular loop.
For square
For circular loop
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