A flat circular coil, carrying a current, has a magnetic moment `mu`

Options

A. `mu` has only magnitude, it does not have direction
B. The direction of `mu` is along the normal to the plane of the coil
C. The direction of `mu` depends on the direction of the current flow
D. The direction of `mu` does not change if the current in the coil is reversed

Answer

B,C

Explanation

`vec(mu)=NIAhat(n)` unit vector perpendicular to `vec(A)`