A bar magnet of magnetic moment `M` and moment of inertial `I` is in the direction of magnetic meridian. If the magnet is displaced by a very small angle `(theta)`, the angular acceleration is (Magnetic induction of earth's horizontal field `=B_(H)`)

A short bar magnet of magnetic moment 2Am^(2) and moment of inertia 6xx10^(2)kgm^(2) is freely suspended such that the magetic axial line is in the direction of magnetic meridian. If the magnet is displaced by a very small angle (3^(0)) ,the angular acceleration is -x10^(-6)rad//sec^(2) (Magnetic induction of earth's horizontal field =4xx10^(-4)T ).

A bar magnet of magnetic moment M is bent in shape with equal arm lengths.The new magnet moment is

What is the direction of the magnetic dipole moment in a bar magnet?

A bar magnet of magnetic moment M is cut into four parts of equal length. The magnetic moment of each part is

A bar magnet of magnetic moment M is bent in the form of quadrant of circular arc . The new magnetic moment is

A bar magnet of magnetic moment M is cut into two parts of equal length/breadths.The magnetic moment of each part will be

What is the torque acting on a magnet of magnetic moment M held at an angel theta with the direction of magnetic field B?