You can try this experiment at home with care. Find a small toroidal transformer with a good primary and secondary. Turns ratio is irrelevant.
Apply 12 or smaller volts (low amps, don't kill yourself) to the primary. Then short the secondary. With the secondary still shorted, disconnect the primary current. Leave it for a few seconds, or days, or weeks, months, or even years.
Connect a meter to the open primary. Disconnect secondary. What did you see on the meter?
If there is no current, there can be no magnetic field, or if there is no magnetic field there can be
no current. What generated the back emf? The electron spin image memory is locked within the circular core of the transformer. There is no movement in the core. It is a image of what was electron spin and domain alignment. When the secondary is opened, the locked spin image memory is released and dissipated causing a back emf in the primary winding. Is it possible that this memory image could somehow be preserved without dissipation? Could we then use this image to imitate a continuous current? Future experiments may provide some interesting results. See the (magnet section) for explanation also.
