1. Tardigrade
  2. Question
  3. Physics
  4. 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

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. 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

NTA AbhyasNTA Abhyas 2020Moving Charges and Magnetism

Solution:

The maximum work done by an external agent is
$W=U_{180 ^\circ }-U_{0 ^\circ }$
$W=MB-\left(- M B\right)$
$W=2MB$