Changes in themagneticfieldgenerated,in fact, there are two:1,closedconductor, conductordoes not movethrough theconductorloopflux change.2, the magnetic fieldconstant,the magnetic fieldrelative tothe conductormotion. Generatoris the use ofthe second,externaldrivegeneratorrotation,driveto a fixedconductor cuttingthe magnetic field.Fixed magnetic fieldis calledthe stator,the rotorrotatingconductorcalled.Producevoltageat the same time,the conductorof resistance(reaction force), thatthrustpowerintoelectrical energyoutput.If the inputpower,rotorthrustwill be affected byrotation,thereverseprocessis themotor.