Magnetic moment of bar magnet is M. The work done to turn the magnet by `90^(@)` of magnet in direction of magnetic field B will be

The torque acting on a bar magnet of magnetic moment M in a uniform magnetic field B will be

Inside a bar magnet the direction of the magnetic field lines is….. .

A bar magnet of magnetic moment 6J/T is aligned at 60^@ with a uniform external magnetic field of 0.44 T. Calculate the work done in turning the magnet to align its magnet moment normal to the magnetic field.

A bar magnet of magnetic moment 6J.T^(-1) is aligned at 60^(@) with a uniform external magnetic field of 0.44T . Calculate the work done in turning the magnet to align ist magnetic moment (i) normal to the magnetic field , (ii) opposite to the magnetic field

A "bar" magnet of magnetic moment 1.5J//T is aligned with the direction of a uniform magnetic field of 0.22 T . The work done in turning the magnet so as to align its magnetic moment opposite to the field and the torque acting on it in this position are respectively.