A bar magnetic with poles `25cm` apart and pole strength `14*4A.m` rests with its centre on a frictionless pivot. It is held in equilibrium at `60^@` to a uniform magnetic field of induction `0*25T` by applying a force F at right angles to its axis, `10cm` from the pivot. Calculate the value of F. What will happen if the force is removed?

A bar magnet with poles 25cm apart and pole strength 14.4 Am rests with its center on a frictionless pivot. If it is held in equilibrium at 60^(0) to a uniform magnetic field on induction 0.25 T by applying a force F at right angles to its axis 10cm from the pivolt, the value of F in newton is (nearly)

A bar magnet with poles 25.0 cm apart and of pole strength 14.4 Am rests with its centre on a friction less point. It is held in equilibrium at 60^(@) to a uniform magnetic field of induction 0.25 T by applying a formce F at right angle to the axis, 12 cm from its pivot. The magnitude of the force is

A bar magnet with poles sqrt3cm apart and pole strength 14*4Am rests with its centre on a frictionless pivot. The magnet is held in equilibrium at an angle of 60^@ to a uniform magnetic field of intensity 0*20T by applying a force F at right angles to its axis, 0*1m from its pivot. What is the value of force F?

A bar magnet with poles 25 cm apart and of strength 14.4 amp - m rests with centre on a frictionless pivot. It is held in equilibrium aat an angle of 60@ with respect to a uniform magnetic field of induction 0.25 Wb//m^(2) , by applying a force F at right angles to its axis at a point 12 cm from pivot. Calculate F . What will happen if the force F is removed?

A bar magnet with its poles 25 cm apart and of pole strength 24.0 A-m rests with its centre on a frictionless pivot. A force F is applied on the magnet at a distance of 12 cm from the pivot, so that it is held in equilibrium at an angle of 30^(@) with respect to a magnetic field of induction 0.25 T. The value of force F is

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 short magnetic needle is pivoted in a uniform magnetic field of induction 1T . Now, simultaneously another magnetic field of induction sqrt3T is applied at right angles to the first field, the needle deflects through an angle theta where its value is

Calculate the magnetic field due to a bar magnet 2cm long and having pole strength of 100A-m at a point 10cm from each pole.

A short bar magnet placed with its axis at 30^@ with a uniform external magnetic field of 0*25T experiences a torque of magnitude equal to 4*5xx10^-2J . What is the magnitude of magnetic moment of the magnet?