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 length 10 cm and pole strength 2 Am is making an angle 60^(@) with a uniform field of induction 50T. Find the couple acting on it.

If a magnet of length 10cm and pole strength 40 A-m is placed at an angle of 45^(@) in an uniform induction field of intensity 2xx10^(-4)T , the couple acting on it is

If a magnet of length 10cm and pole strength 40 A-m is placed at an angle of 45^(@) in an uniform induction field of intensity 2xx10^(-4)T , the couple acting on it is

The magnetic moment of a length 10 cm and pole strength 4.0 Am will be

A magnet of length 0.1 m and pole strength 10^(-4) A.m. is kept in a magnetic field of 30 Wb//m^(2) at an angle 30^(@) . The couple acting on it is …xx10^(-4)Nm .

A magnet of length 0.1 m and pole strength 10^(-4) A.m. is kept in a magnetic field of 30 Wb//m^(2) at an angle 30^(@) . The couple acting on it is …xx10^(-4)Nm .

A bar magnet of length 21 cm and pole strength m is placed in a uniform magnetic field , B inclined at angle 'theta' with the field . a. What is the force acting on each pole ? b. Why the magnet gets a rotating effect ?