Question

A current of 10 A is flowing through a
circular coil of 5 turns, each of radius 7
cm. the coil lies in the X-Y plane. What is
the magnitude and direction of the
magnetic dipole moment with it?
0.47 Amalong Z axis
0.77 Am2 along Z axis
0.77 Am2 along Y axis
1.54 Am2 along X axis​

Answer 1

Answer:option b is correct

Explanation:

Magnetic dipole moment

M=nIA=nI.(πr2)

=5×10×227×7100×7100

=0.77Am2

The direction of M is perpendicular to the plane of the coil Hence it is along the Z axis