Teaching UP PGT Mock Test Series 2024 Physics Moving Charges and Magnetism The Magnetic Dipole Moment
A bar magnet of magnetic moment 1.5 J T−1 lies aligned with the direction of a uniform magnetic field of 0.22 T. An external source is applied to turn the magnet so as to align its magnetic moment opposite to the field direction. The work done by the external source is
1
0.33 J
2
0.66 J
3
3.3 J
4
6.6 J