A current of 6A is flowing through a 20 turns circular coil of radius 5cm.The coil lies in the xy-plane. What is the magnitude and direction of the magneitc dipole moment assocaited with it?
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Magnetic dipole moment is give by `" "M=NIA` `" " Here, N=20,I=6A,r=5cm=0.05cm` `therefore " " M=(20)xx(6)xx(22)/(7)xx(0.05)^(2)=0.94Am^(2)` The direction of magnetic dipole moment is perpendicular to the plane of the plane of the coil, Hence it is along Z-axis.
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