A short bar magnet is placed with its north pole pointing south . The natural point is $15\;cm$ away from the center of the magnet. If $H= 0.5 \;G$, Calculate the magnetic moment of the magnet.

Question

$\begin{array}{1 1} 8.4\;Am^2 \\ 0.84\;Am^2 \\ 8.4\;A/m^2 \\ 0.84\;Am^2 \end{array} $