We know that, \(\mu = iA\frac{ev}{2\pi r}\times \pi r^{2}=\frac{evr}{2}\)
As l = mvr
\(vr= \frac{1}{m}\) \(\underset{\mu }{\rightarrow}=-\frac{e\underset{l}{\rightarrow}}{2m}\)Therefore, it can be said that the direction of mu is always opposite to that of the direction of l.
Also, it is positive when the movement is anticlockwise and negative when the movement is clockwise.
