The silicon steel sheet of the permanent magnet generator coil is replaced with aluminum sheet and zinc sheet
Permanent magnet generator can also have current output, what can not be magnetic (not be attracted by permanent magnet) metal can replace silicon steel sheet. Power without silicon steel sheet is good, very small, but the coil needs to change shape.
Just a rocking team. When a magnetic field is cut, the electromotive force (voltage) does not cancel out in the winding. However, the power efficiency is very low.
