問題詳情
30. 設一電路之電壓及電流各為 100∠60°伏特及 20∠30°安培，則此電路消耗之有效功率為多少瓦特？
(A)2000W
(B)1000W
(C)866W
(D)1732W。
(A)2000W
(B)1000W
(C)866W
(D)1732W。
參考答案
無參考答案
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