MHT CET2017PhysicsMagnetic Effects of Current
A magnetic dipole is placed in a uniform magnetic field of intensity B , oriented along the direction of the field. If the magnetic dipole moment is M , then the maximum work an external agent can perform in rotating the dipole will be
Options
- A1 2 M B
- B4 M B
- C2 M B
- DM B
Correct answer
C. 2 M B
Step-by-step solution
The maximum work done by an external agent is W = U 180 ° - U 0 ° W = M B - - M B W = 2 M B