問題詳情
8.正弦交流電的有效值等於其最大值的多少倍？
(A)1/√3
(B) 1/√2
(C) 1/3
(D)1/2
(A)1/√3
(B) 1/√2
(C) 1/3
(D)1/2
參考答案
答案：B
難度：適中0.514286
統計：A(7),B(18),C(8),D(2),E(0)
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