如图7-36所示电路,换路前UC(0-)=0.2U1,U(0-)=0,求电路换路后UC(0+)和U(0+)分别为()。
A . UC(0+)=0.2U1,U(0+)=0
B . UC(0+)=0.2U1,U(0+)=0.2U1
C . UC(0+)=0.2U1,U(0+)=0.8U1
D . UC(0+)=0.2U1,U(0+)=U1
[单选题]图示电路中,换路前UC(0-)=0.2Ui,UR(0-)=0,电路换路后UC(0+)和UR(0+)分别为( )。A.= 0.2Ui,0B.0.2Ui
[单选题]图示电路中,换路前UC(0-)= 0.2Ui,UR(0-)=0,电路换路后UC(0+)和UR(0+)分别为( )。A.= 0.2Ui,0B.0.2U
[单选题]图示电路中,换路前UC(0-)= 0.2Ui,UR(0-)=0,电路换路后UC(0+)和UR(0+)分别为( )。A.= 0.2Ui,0B.0.2U
[单选题]图示电路中,换路前UC(0-)= 0.2Ui,UR(0-)=0,电路换路后UC(0+)和UR(0+)分别为( )。A.= 0.2Ui,0B.0.2U
[单选题]图示电路中,换路前UC(0-)= 0.2Ui,UR(0-)= 0,电路换路后UC(0+)和UR(0+)分别为( )。A.=0.2Ui,0B.0.2U
[单选题]如图7-34所示电路中,换路前处于稳态,换路后i(0)等于()A。A . -1B . -2C . 0.2D . 0
[单选题]图10-63所示电路u(0-)=0V,uC2(0-)=10V,当t图10-63题10-110图=0时闭合开关S后,uC2应为()V。以上各式中τ=2us。A . 6.67(1-)B . 10VC . 10(1-)D . 6.67+3.33
[单选题]图示电路中,换路前UC(0 - )= 0.2Ui,UR(0 - )= 0,电路换路后UC(0+)和UR(0+)分别为( )。A.= 0.2Ui,0B
[单选题]如图7-35所示电路中,iL(0-)=0,当t=0时闭合开关S后,iL应为()A(式中τ=10-6s)。A . B . C . D .
[单选题]如图1-5-16所示,电路UC1(0-)=UC2(0—)=0,t=0时闭合开关S后,uC1为下列哪项?( )[2005年真题]图1-5-16A.,式