## Magnetoelectric devices: transducers, transformers, and machines |

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3-phase air gap air-gap flux amperes amplifier angular applied approximately armature armature current capacitance circuit of Fig coil current commutator machine component conductors connected constant core crystal Determine direct current direction domain wall energy equivalent circuit ferromagnetic field circuit field current flux density flux f flux linkage frequency hysteresis ideal transformer impedance increase induced voltage induction machine induction motor input leakage inductance leakage reactance linear locus loss magnetic amplifier magnetic field intensity magnetic flux magnetic material magnetic moments magnetic system magnetizing current magnetizing reactance magnetomotive force magnitude maximum mechanical negligible newton-meters no-load open-circuit operating path permanent-magnet phase phasor pole polyphase machine produced radians rated relation reluctance rotating rotor rotor angle rotor windings saturation Section short circuit shown in Fig shows single-phase sinusoidal slots stator and rotor stator current stator winding steady-state supply voltage Suppose synchronous machine synchronous speed terminal voltage three-phase torque transient volts zero