如题图所示电路原已稳定,t=0时断开开关S,则uC1(0+)为下列何值?(  )

昕玥2019-12-17  5

问题 如题图所示电路原已稳定,t=0时断开开关S,则uC1(0+)为下列何值?(  )

选项 A. 78V B. 117V C. 135V D. 39V

答案A

解析[img]/upload/tiku/37/5850357_1.jpg[/img]
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