Find the magnetic induction at the mid-point between the poles of a horse-shoe magnet. the strength of each pole is 4 `A.m^2` , separated by a distance 4cm.

When a non magnetic metallic strip is moved away from between the poles of a horse-shoe magnet, there is

If L be the length of a bar magnet then separation between the two poles is naarly

The magnetic induction in the region between the pole faces of an electromagnet is 0.7 weber/m 2. The induced e.m.f. in a straight conductor 10 cm long, perpendicular to B and moving perpendicular both to magnetic induction and its own length with a velocity 2 m/sec is

If the magnet is cut into four equal parts such that their lengths and breadths are equal . Pole strength of each part is

A bar magnet 8 cm long is placed in the magnetic merdian with the N-pole pointing towards geographical north . Two netural points separated by a distance of 6 cms are obtained on the equatorial axis of the magnet . If horizontal component of earth's field =3.2xx10^(-5)T, then pole strength of magnet is

The distance between the poles of a horse shoe magnet is 0.1 m and its pole strength is 0.01 amp-m. The induction of magnetic field at a point midway between the poles will be

The pole piece of a horse shoe magnet are made cylindrical so that the deflection of the

A long bar magnet has a pole strength of 10 Am . Find the magnetic field at a point on the axis of the magnet at a distance of 5cm from the north pole of the magnet.

A bar magnet of pole strength 10A-m is cut into two equal parts breathwise. The pole strength of each magnet is

The magnetic moment of a length 10 cm amd pole strenth 4.0 Am will be