I was wondering if a generator could be made more efficient by just using high voltage low amperage coils. For example lets say we have a generator made from permanent magnets on the rotor and coils on the stator. As a load is drawn from a generator it will have to work harder or slow down because a voltage is being generated in the coils which produces an opposing magnetic field. Since the strength of electromagnets is derived from amps/turns of wire, wouldn't it be more efficient to have the generator produce high voltage AC by using very thin wire with many turns, then using a transformer to turn that high voltage AC into lower voltage higher amperage output? The conversion into higher current is done away from the generator so that the generator will not experience the heavy loads. I am assuming that many generators do this already, but I am looking for confirmation that this is correct.