7.電路中，當有效電力等於無效電力時，其功率因數為多少？(A)1(B)0.866(C) 0.707(D) 0.5

問題詳情

7.電路中，當有效電力等於無效電力時，其功率因數為多少？
(A)1
(B)0.866
(C) 0.707
(D) 0.5

參考答案

答案：C
難度：適中0.5
統計：A(17),B(3),C(31),D(7),E(0)

上一篇 : 3 Cuteness has been a _____ aspect of Japanese culture, and cute elements can be found almost everyw
下一篇 : 4 Many parents are worried that the daily ______ of sex and violence in TV shows will have a bad inf