An electrical device which employs a stationary ar
An electrical device which employs a stationary armature and a rotating electromagnetic field is used aboard as a
A.magnetic amplifier
B.ship"s service alternator
C.three-wire DC generator
D.saturable core reactor
请帮忙给出正确答案和分析，谢谢！
参考解答
457***779
2024-06-14 22:29:04
正确答案：B
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