10. 已知交流電路之瞬間值方程式如下:
= 100sin(377t +30°)V ,
= -10cos(377t +60°)V ,則電壓與電流之相位關係為何?
(A)電壓超前電流30°
(B)電壓超前電流60°
(C)電流超前電壓30°
(D)電流超前電壓60°
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統計: A(9), B(303), C(18), D(29), E(0) #2989054
統計: A(9), B(303), C(18), D(29), E(0) #2989054