Verified Solution • 2025–26 Session
moderate
QJEEM17Phe03b: JEE Main 2017 Physics - Class 12 JEEM17Phe03b Solution: A magnetic dipole in a constant magnetic field has :
A magnetic dipole in a constant magnetic field has :
Multiple Choice Options
- A maximum potential energy when the torque is maximum.
- B zero potential energy when the torque is minimum.
- C zero potential energy when the torque is maximum.
- D minimum potential energy when the torque is maximum.
Step-by-Step Verified Solution
In uniform magnetic field, the torque experienced by the magnetic dipole is = MB sin
Torque will be maximum when = 90o
max = MB sin90o = MB
Potential energy of magnetic dipole,
= MB cos
at maximum torque,
= MB cos 90o = 0
Torque will be maximum when = 90o
max = MB sin90o = MB
Potential energy of magnetic dipole,
= MB cos
at maximum torque,
= MB cos 90o = 0