电路如图所示,当t=0时,闭合开关S,有UL1(0+) = U12(0+) =

shuhaiku2020-05-20  16

问题 电路如图所示,当t=0时,闭合开关S,有UL1(0+) = U12(0+) = 0,则UL1(0+)为( )。

选项 A. 1.5VB. 6VC. 3 VD. 7.5V

答案C

解析解如图a)所示。[img]/upload/tiku/139/342484_1.jpg[/img][img]/upload/tiku/139/342484_1_1.jpg[/img]
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