图所示单口网络相量模型的等效阻抗等于( )。[img=221x118]17d60581382f758.png[/img]
A: (3+j4)W
B: (1.92+j1.44)W
C: (0.33-j0.25)W
D: (0.12+j0.16)W
A: (3+j4)W
B: (1.92+j1.44)W
C: (0.33-j0.25)W
D: (0.12+j0.16)W
举一反三
- 图所示单口网络相量模型的等效阻抗等于( )。<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/18a70d01bb114ed6b3e2dac0afe50d36.png" /> A: (3+j4)W B: (1.92+j1.44)W C: (0.33-j0.25)W D: (0.12+j0.16)W
- 如图所示,单口网络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
- 图所示单口网络相量模型的等效阻抗等于( )。[img=221x118]17a3dc8b7867823.png[/img]
- 5mH电感的电流如图所示,试求t=0.5ms时,电感电压(电压电流为关联参考方向)和电感储能为 :[img=487x283]1803c3c9e5615a6.png[/img] A: u=100V,w=0.25μJ B: u=-100V,w=1.25μJ C: u=-0.1V,w=1.25μJ D: u=0.1V,w=0.25μJ
- 在括号中填上适当的/r/、/w/、/j/音。Who()else saw it and what did they say()about it? A: /w/、/j/ B: /r/、/w/ C: /r/、/r/ D: /j/、/w/