What should be the orientation of a magnetic dipole in a uniform magnetic field so that its potential energy is i) maximum ii) minimum?

When the magnetic dipole is aligned along the magnetic field, when θ = 00, it is in stable equilibrium having minimum P.E.
When, ​θ = 1800, U = - MB cos 1800  = M B

which is maximum. This is the position of unstable equilibrium.
 

  • 15
What are you looking for?