What is happening at the atomic level which makes it necessary for a magnetic field to be changing with time in order to induce an EMF in a coil of wire? Why won't a constant magnetic field induce an electron flow?
I have am assuming that it has to do with the spin-lattice relaxation of Larmor precession. Given that, in a static magnetic field, the precession of nuclei ceases after a time period known as the spin-lattice relaxation time. After this time, most of the nuclei will align their magnetic moments parallel, or anti-parallel, to the (constant) magnetic field...(thus no current flow). To refresh the precession of nuclei, the field has to be brought to zero and then steadily, but quickly enough, increased to the desired value, such that the precession of a large population of the nuclei is maintained. This is achieved in an alternating magnetic field, or in a magnetic field oscillating between zero and some maximum value. Is it accurate to conclude that it's the actual process of precession which causes electron current to flow in a conductor? If this is incorrect, can you please explain what is actually happening?