单选题Voltage generated by most AC generators is fed from the machine to the bus by means of（）.Abrushes on a commutatorBbrushes on slip ringsCslip rings on a commutatorDdirect connections from the stator
单选题
Voltage generated by most AC generators is fed from the machine to the bus by means of（）.
A
brushes on a commutator
B
brushes on slip rings
C
slip rings on a commutator
D
direct connections from the stator
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