A bar magnet of length `10 cm` experiences a torque of `0.141 N-m` in a uniform magnetic field of induction `0.4 wb//m^(2)`, when it is suspended making an angle `45^(@)`with the field, the pole strength of the magnet is

A bar magnet of length 0.2 m and pole strength 5 Am is kept in a uniform magnetic induction field of strength 15 wb//m^(-2) making an angle of 30^(@) with the field. Find the couple acting on it.

A bar magnet of length 10cm and pole strength 2 Am makes an angle 60^(0) with a uniform magnetic field of induction 50T . The couple acting on it 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

The length of a bar magnet is 10 cm and its pole strength is 10^(-3) Weber. It is placed in a magnetic field of induction 4 pi × 10^(-3) Tesla in a direction making an angle 30^(@) with the field direction. The value of torque acting on the magnet will be –

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

.A magnet of magnetic moment 4.0"A-m^(2) is held in a uniform magnetic field of induction 5.0times10^(-4)T with the magnetic moment vector making an angle 30∘ with the field.The work done in increasing the angle from "30∘ to "45∘ is about

Can a magnetic dipole experience a torque or net force in (i) a uniform magnetic field and (ii) a non-uniform magnetic field?

A bar magnet of magnetic moment M is divided into 'n' equal parts cutting parallel to length. Then one part is suspended in a uniform magnetic field of strength 2T and held making an angle 60^(@) with the direction of the field. When the magnet is released the K.E of the magnet in the equilibrium position is