The coupl acting on a bar magnet of pole strength `2 Am` when kept in a magnetic field of intensity `10 A//m`, such that axis of the magnet makes an angle `30^(0)` with the direction of the field is `80xx10^(-7)Nm`. The distance between the poles of the magnet is

A bar magnet of pole strnegth 2A-m is kept in a magnetic field of induction 4xx10^(-5)wbm^(-2) such that the axis of the magnet makes an angle 30^(@) with the directon of the field. The couple acting on the magnet is found 80xx10^(-7)N-m . Then the distance between the poles of the magnet is

A bar magnet of pole strength 2 A-m is kept in a magnetic field of induction 4xx10^(-5) Wbm^(-2) such that the axis of the magnet makes an angle 30^(@) with the direction of the field. The couple acting on the magnet is found to be 80xx10^(-7) N-m. Then, the distance between the poles of the magnet is

The couple acting on a magnet of length 10 cm placed in a uniform magnetic field of intensity 40 NA^(-1)m^(-1) such that the axis of the magnet makes 45^(@) with the field direction is sqrt2/10 Nm . The pole strength of the magnet (in Wb) is

A magnet of length 10 cm and pole strength 4xx10^(-4)Am is placed in a manetic field of induction 2xx10^(-5)weber m^(-2) , such that the axis of the magnet makes an angel 30^(0) with the lines of induction. The moment of the couple acting on the magnet is

The couple acting on a magnet of length 10cm and pole strength 15A-m, kept in a field of B=2xx10^(-5) , at an angle of 30^(@) is

The couple acting on a magnet of length 10cm and pole strength 15A-m, kept in a field of B=2xx10^(-5) , at an anlge of 30^(@) is

The intensities of magnetic field at two points on the axis of a bar magnet at distances of 10 cm and 20 cm from the middle point are in the ratio 18:1. Find the distance between the poles of the magnet.

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.