I have what is likely a very stupid question, but here go's. I was sitting around and got thinking how I might make a better generator. One that doesn't develop opposing torque on the armature when it is under load. How would the laws of conservation come into play if I were to build a generator that had a stator consisting of a ring of strong permanent magnets and a rotor consisting of a series of soft iron plates that are spaced apart the same width as the width of the magnets. The rotor would have a small space between the magnets and the soft iron plates. So what I would have is the soft iron plate’s temporarily blocking the magnetic field from the magnets as the plates pass by. On the opposite side of the rotor would be a series of coils sitting stationary directly across from the magnets the coils would only have magnetic flux breaking across when the iron plates passed by and there is the space between the plates. My question is would such a generator not develop any opposing torque. And would this device not possibly produce more energy then what it would take to run it. I have not built such a device yet, but it sure has me wondering.