4.如圖(4)所示，v(t) = 240 sin 377tV，總電流 i(t)為
(A)5√2sin(377T-  53°)
(B)5√2 sin(377t-37°)
(C)5√2 sin(377t+53°)
(D)5√2 sin(500t+37°)

答案：登入後查看
統計： A(2), B(1), C(13), D(2), E(0) #1404008