圖示單口網(wǎng)絡(luò)相量模型的等效阻抗等于()
A.(3+j4)Ω B.(0.33-j0.25)Ω C.(1.92+j1.44)Ω D.(0.12+j0.16)Ω
圖示正弦電流電路中電壓u(t)的初相等于()
A.36.9° B.-36.9° C.-53.1° D.53.1°
圖示正弦電流電路中電壓u(t)的振幅等于()
A.1V B.4V C.10V D.20V