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1.同步發電機的電源頻率由下列何者決定?①原動機轉速 ②激磁電流的大小 ③磁極對數 ④端電壓的大小(A)①②(B)①③(C)③④(D)②④
問題詳情
1.同步發電機的電源頻率由下列何者決定?①原動機轉速 ②激磁電流的大小 ③磁極對數 ④端電壓的大小
(A)①②
(B)①③
(C)③④
(D)②④
參考答案
答案:B
難度:適中0.645161
統計:A(27),B(60),C(4),D(2),E(0)
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