图示电路中,等效电阻R0为()。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/c9da5b4ba58f4837a77d6dc3cda0939f.jpg
举一反三
- 图示电路中,已知电阻均为100Ω,U=220V,C=0.01μF,S接通后电路的时间常数为()。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/95043ab387cd42b1965a4a4975030f8f.jpg
- 图示电路中,已知电阻均为100Ω,U=220V,C=0.01μF,S接通后电路的时间常数为( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/95043ab387cd42b1965a4a4975030f8f.jpg
- 下图中关于明度的 9 个等级中 4 、 5 、 6 为( )http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/2b413aefcae7477c8a09afb64b0827fe.png
- 图示电路中,支路电流I1为()。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/3f9ea37cd3064113937d2aaefe0d2745.jpg
- 下图关于纯度对比9调图,4、5、6对比表述为()http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/6893c7bf37b9468dae8f58828e4da7d1.png