問題詳情
19.一台定子為六極繞組的感應馬達,額定頻率為60Hz,則其定子磁場的頻率為:
(A)OHz
(B)19Hz
(C)20Hz
(D)21Hz
(A)OHz
(B)19Hz
(C)20Hz
(D)21Hz
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增
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