41. 對方波而言,半波整流有效值為全波整流有效值的多少倍?
(A)1倍
(B)$\frac{1}{2}$倍
(C)$\frac{1}{\sqrt{2}}$倍
(D)$\frac{1}{\sqrt{3}}$倍
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統計: A(109), B(198), C(342), D(40), E(0) #3211236
統計: A(109), B(198), C(342), D(40), E(0) #3211236