The intensity of magnetic field due to an isolated pole of strength m at a pont distant r from it will be proportional to

The strength of magnetic field due to a solenoid depends on the

The pole strength of a magnet is

The pole strength of a magnet is

The magnetic potential at a point due to pole of strength m at a distance r is

The intensity of magnetic field due to a short bar magnet at a given point on its axis inversely proportional to_________

Magnetic field strength due to a bar magnet at a point distant d from the center of magnet

The magnetic moment of bar magnet of length ' "2l and pole strength 'm' is

The intensities of magnetic field at two points on the axis of a bar magnet at distances 0.1m and 0.2 m from its middle point are in the ratio 12.5:1. Calculate the distance between the poles of the magnet.