如图7-38所示电路原已稳定,t=0时断开开关S,则uC1(0+)为()V。

题库总管2019-12-17  1

问题 如图7-38所示电路原已稳定,t=0时断开开关S,则uC1(0+)为()V。A.78 B.117 C.135 D.39

选项

答案A

解析正确答案是A。提示:S闭合时,电路稳定,电容相当于开路。[img]/upload/tiku/36/2206154_1.jpg[/img]
转载请注明原文地址:https://ti.zuoweng.com/ti/xSoNKKKQ