The magnetising field required to be applied in opposite direction to reduce residual magnetism to zero is called

The reverse magnetising field required to wipe out residual magnetism is called

The work done in rotating the magnet form the direction of uniform field to the opposite direction to the field is W . The work done in rotating the magnet form the field direction to half the maximum couple position is

In the hysteresis cycle, the value of H needed to make the intensity of magnetisation zero is called

When a material is placed in magnetic fields B magnetic moment proportional to B but opposite in direction is induced. The material is

A proton enters a magnetic field vecB with velocity vecV in a direction opposite to vecB .The net magnetic force is—

The work done in rotating a magnet of magnetic moment 2A-m^(2) in a magnetic field to opposite direction to the magnetic field, is