what happen if ac supply is fed to rotor of the alternator
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Answer Posted / guest
in case of ac supply the current will vary
alternatively,its value varies from zero,+ve max,zero,-ve
max .so u will get zero magnitude of magnetic field for one
cycle.so u cant cut stator with flux,so there is no induced
emf in stator. finally no output from stator.but in dc
exicitation u will get net magnetic field.and u will get
induced emf.
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