39. 如圖所示之交流穩態電路,試求 v(t) 應為何?
(A)v(t)=2cos(377t+45°) V
(B)v(t)=2cos(377t-45°) V
(C)v(t)=$\sqrt{2}$cos(377t+45°) V
(D)v(t)=$\sqrt{2}$cos(377t-45°) V
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統計: A(13), B(46), C(67), D(140), E(0) #3288003
統計: A(13), B(46), C(67), D(140), E(0) #3288003