电路如图所示,换路前电路的状态已经稳定。t = 0时,开关S由a切换到b,换路后电阻上电流的初始值iR(0+)为( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/20291effba3b479a8193c3974cfe82cf.png
举一反三
- 电路如图所示,换路前电路的状态已经稳定。t = 0时,开关S由a切换到b,换路后电容上电压的初始值uC(0+)为( )。[img=414x212]17a3dc94aaf64b8.png[/img]
- 如图所示电路,t=0时开关S打开,换路前电路已处于稳态,则换路后的( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/ec41b99f929a47699a281a55ef3c4d22.png
- 如图所示电路,换路前已处于稳态,t=0时闭合开关S。试求换路后(闭合S)t=0+时的i与uc()。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/053466736b334cee8618e15db8ff6f99.png
- 如图所示电路,换路前已处于稳态,t=0时闭合开关S。试求换路后(闭合S)t=0+时的i与uc( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/006bc2bbecc344e68c498e65823f46c6.png
- 电路如图5所示,开关K断开状态时电路达到稳定状态,开关闭合电路换路,电路时间常数为:( )http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/6cbe40f5a09c4e8794ce541847250299.png