Earth's magnetic field at a place where angle of dip is $37°$ and vertical component of earth's magnetic field is $0.5 \mathrm{G}$ is

Orientation of two identical small bar magnet of magnetic moment ' $M$ is as shown in figure. The magnitude of magnetic field at the point $O$ which lies on equatorial line of one magnet and axial line of another magnet is ($r>>$ size of magnet)

A bar magnet of magnetic moment $M$ is gently placed inside the two mutually perpendicular magnetic field $B_V=6 \mathrm{T}$ and $B_H=2 \mathrm{T}$ as shown in figure. The net torque on the bar magnet will be zero