A.single phase
B.two phase
C.three phase
D.four phase
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A.zero
B.eliminated
C.different
D.equal
A.power
B.efficiency
C.effective power
D.power factor
A.connects
B.trips
C.fouls
D.destructs
A.The generator needs not excitation
B.The winding on the rotor is for inputting excitation current
C.There are three phase windings on the rotor
D.The generator has brushes
A.current
B.voltage
C.power
D.frequency
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