Questions
Magnetic field at the center of a circular coil is B. If area of the coil is A then magnetic moment of the loop is
a
BA2μ0π
b
BAAμ0
c
BAAμ0π
d
2BAμ0Aπ
detailed solution
Correct option is D
magnetic moment is M= iA. ,B=μ0i2r =2rBiμ0 A=πr2 r=AπM=2rBμ0A=2Bμ0AπATalk to our academic expert!
Similar Questions
A circular loop has a radius of 5 cm and it is carrying a current of 0.1 A. Its magnetic moment is
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