question_answer 21)

                A magnetic dipole is under the influence of two magnetic fields. The angle between the field directions is , and one of the fields has a magnitude of . If the dipole comes to stable equilibrium at an angle of with this field, what is the magnitude of the other field?  

Answer:

Inclination of dipole with field ,                 i.e.                 Inclination of dipole with field                 i.e.                 Using, we get                                                 .