A short bar magnet is placed in the magnetic meridian of the earth with north pole pointing north. Neutral points are found at a distance of 30 cm…

A short bar magnet is placed in the magnetic meridian of the earth with north pole pointing north. Neutral points are found at a distance of $\displaystyle 30$ cm from the magnet on the East - West line, drawn through the middle point of the magnet. The magnetic moment of the magnet in $\displaystyle \mathrm{Am}^2$ is close to : (Given $\displaystyle \frac{\mu_0}{4 \pi}=10^{-7}$ in SI units and $\displaystyle \mathrm{B}_{\mathrm{H}}=$ Horizontal component of earth's magnetic field $\displaystyle =3.6 \times 10^{-5}$ Tesla.)