A short bar magnet of magnetic moment 0.4 J/T is placed in a uniform magnetic field of 0.16 T. The magnet is in stable equilibrium when the potential energy is:

A short bar magnet of magnetic moment 0*4JT^-1 is placed in a uniform magnetic field of 0*16T . The magnet is in stable equilibrium when the potencial energy is

A short bar magnet having magnetic moment M=0.80 JT^1 is placed in uniform magnetic field of 0.30 T. If bar magnet is free to rotate in plane of field, then (where U is potential energy and tau is torque)

A bar magnet of magnetic moment vec(M) is placed in a magnetic field of induction vec(B) . The torque exerted on it is

The potential enargy of bar magnet of magnetic moment 8 Am ^(2) placed in a uniform magnetic field of 2 T at an angle of 120^(@) is equal to

A short bar magnet of moment 0*32JT^-1 is placed in a uniform external magnetic field of 0*15T , if the bar is free to rotate in the plane of the field, which orientations would correspond to its, (i) stable and (ii) unstable equilibrium? What is the potential energy of the magnet in each case?

A short bar magnet of moment 0*32JT^-1 is placed in a uniform external magnetic field of 0*15T , if the bar is free to rotate in the plane of the field, which orientations would correspond to its, (i) stable and (ii) unstable equilibrium? What is the potential energy of the magnet in each case?

A bar magnet of magnetic moment 6 J//T is aligned at 60^(@) with a uniform external magnetic field of 0.44 T. Calculate (a) the work done in turning the magnet to align its magnetic moment (i) normal to the magnetic field, (ii) opposite to the magnetic field, and (b) the torque on the magnet in the final orientation in case (ii).

A bar magnet of magnetic moment 3.0 A-m^(2) is placed in a uniform magnetic induction field of 2xx10^(-5)T . If each pole of the magnet experiences a force of 6xx10^(-4)N , the length of the magnet is

Two identical bar magnets, each of magnetic moment M, are placed as shown in figure. Magnetic field at point

A magnet of magnetic moment 2JT^(-1) is aligned in the direction of magnetic field of 0.1T . What is the net work done to bring the magnet normal to the magnrtic field?