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

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 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

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 bar magnet of magnetic moment 0.4 Am^(2) is placed in a uniform magnetic field of induction 5 xx10^(-2) tesla. The angle between the magnetic induction and the magnetic moment is 30^(@) . The torque acting on the magnet is

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 magnetic moment 0.4 Am^(2) is placed in a uniform magnetic field of induction 5 xx10^(-2) tesla. What is the torque acting on the magnet if the angle between the magnetic induction and the magnetic moment is 30^(@) .

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 –