When is the potential energy of a magnetic dipole in a uniform magnetic field be the maximum?
Answer & explanation
Correct answer: option 3
The potential energy of a magnetic dipole in a uniform magnetic field be the maximum when θ = 180.
Um = -m.B = -mB Cos θ
Umax = mB ⇒ Cos θ = -1 ⇒ θ = 180