What is the magnitude of the magnetic moment of a short bar magnet placed with its axis at 30° with a uniform external magnetic field of 0.25 T that experiences a torque of magnitude 0.045 J?
1
36 J/T
2
0.56 J/T
3
56 J/T
4
0.36 J/T
What is the magnitude of the magnetic moment of a short bar magnet placed with its axis at 30° with a uniform external magnetic field of 0.25 T that experiences a torque of magnitude 0.045 J?