Let's say we have a north south bar magnet and we place it in a uniform magnetic field such that the magnetic moment is perpendicular to the magnetic field. What happens to the orientation of the magnet? In my view, the magnet receives a torque pointing out of/in to the page that causes the magnet to rotate so that its magnetic dipole moment aligns with the external field. In this scenario, there is absolutely no precession. In my understanding, there should only be precession if that magnetic dipole already has some angular momentum. So what is the correct answer? I ask this after watching the following video by Leonard Susskind: In which at 5:44 he claims that a bar magnet will precess when placed in a magnetic field. He seems to be conflating electrons with bar magnets in this example, though, and I agree that in the case of an electron it will indeed precess. But for a simple bar magnet it should not.