This statement is partially not true. The magnetic amplifiers was widely used back in the day. It utilized transformer core saturation with DC magnetic field. What was not widely explored is replacing AC input with DC input to make magnet. And DC input with pulsed DC input to block magnetic flux due core saturation and making sure the control coils are not doing transformer action.
The coil and magnet always work symmetrically, so there is no way to change it. This can be seen by trying to influence the second magnet with another magnet. The coil does 100% the same thing, only it has greater losses, but the magnetic field balance is always the same. Adding a magnet to a coil does not cause growth unless the magnet moves. It really doesn't take much time to test it in practice. I only know one way to increase the current in the coil in a way that no one has thought of yet (I didn't know). Unfortunately, this is not anything that would result in a large increase, but the effect is an increase above 1. The input current decreases and the output increases. No one was interested in this on ou.com, so there is no need to explain further here.
« Last Edit: 2023-12-23, 08:09:02 by maxmalone »
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