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）。https://assets.asklib.com/psource/2015110111261428079.jpg

A .https://assets.asklib.com/psource/2015110111290284798.jpg B .https://assets.asklib.com/psource/201511011129155823.jpg C .https://assets.asklib.com/psource/2015110111293084231.jpg D .https://assets.asklib.com/psource/2015110111294629263.jpg

A . 0 B . 4 C . 7.5 D . 8

A . 4.5-0.5https://assets.asklib.com/psource/2015102909090699957.jpg A.B . 4.5-4.5https://assets.asklib.com/psource/2015102909090699957.jpg A.C . 3+0.5https://assets.asklib.com/psource/2015102909090699957.jpg A.D . 4.5-0.5https://assets.asklib.com/psource/2015102909090699957.jpg A.

A . A B . B C . C D . D

如图5.4.10所示电路中，t＜0时，电路已处于稳态，t=0时开关闭合，求t≥0₊时ic(t)。 <img src='https://img2.soutiyun.com/ask/2020-02-27/951671752554798.jpg' />

是 否

-1A 2A 1A 0A

在图II-4所示电路中，开关S断开前电路已稳定，t=0时，断开S，则响应iL为()。 <img src='https://img2.soutiyun.com/ask/2020-04-28/956919156585214.png' /> A.<img src='https://img2.soutiyun.com/ask/2020-04-28/956919169829195.png' /> B.<img src='https://img2.soutiyun.com/ask/2020-04-28/956919179530655.png' /> C.<img src='https://img2.soutiyun.com/ask/2020-04-28/956919190240181.png' />

电路如图题6-33所示,求<img src='https://img2.soutiyun.com/ask/2020-10-15/971631143700658.png' /><img src='https://img2.soutiyun.com/ask/2020-10-15/971631160210602.png' />已知开关在t=0时闭合,闭合前电路已处于稳态. <img src='https://img2.soutiyun.com/ask/2020-10-15/971631172391299.png' />

题图14-5所示电路中，已知uc(0)=-2V，iL(0)=0.6A，试求t≥0时的电容电压uc(t)和电感电流iL(t)的零输人响应。 <img src='https://img2.soutiyun.com/ask/2020-07-08/963048132138953.png' /><img src='https://img2.soutiyun.com/ask/2020-07-08/963048150707015.png' /><img src='https://img2.soutiyun.com/ask/2020-07-08/963048171235189.png' />

电路如图所示，Is=3A，Us=18V，R1=3Ω，R2=6Ω，L=2H，在t＜0时电路已处于稳态。当t=0时开关S闭合，求t≥0时的i_L、u和i(t)。 <img src='https://img2.soutiyun.com/ask/uploadfile/5499001-5502000/c59f97db78e22204b83620ad1e292af9.jpg' />

电路如题6-4图所示，已知电感电流iL(0_)=0，t=0时闭合开关，求t≥0的电感电流和电感电压。 <img src='https://img2.soutiyun.com/ask/2020-08-20/966784685280226.png' />

题图9-11所示电路中，已知uc(0)=2V，iL(0)=1A。试求t≥0时，电容电压uc(t)和电感电流iL(t)的零输人响应。 <img src='https://img2.soutiyun.com/ask/2020-07-07/962964466825117.png' />

题图14-6所示电路中，已知uc(0)=6V，iL(0)=0，试用计算机程序DNAP计算电容电压uc(t)和电感电流iL(t)的零输人响应。 <img src='https://img2.soutiyun.com/ask/2020-07-08/96304829310616.png' /><img src='https://img2.soutiyun.com/ask/2020-07-08/963048301266626.png' /><img src='https://img2.soutiyun.com/ask/2020-07-08/963048308961066.png' />

t≥0时电路如图题12-2所示，已知i_L(0_)=-2A，u_c(0_)=2V，试求u_c(t)，t≥0。 <img src='https://img2.soutiyun.com/ask/2020-08-31/967733127072818.png' />

<img src="https://img2.soutiyun.com//1/2021-05-05/989071849627999.png"/> 图18

A．78V B．117V C．135V D．39V

电路如图题7-1所示,开关在t=0时打开,打开前电路已处于稳态.求<img src='https://img2.soutiyun.com/ask/2020-10-15/971634467034742.jpg' />. <img src='https://img2.soutiyun.com/ask/2020-10-15/971634480570516.jpg' />

电路如图题7-3所示,当t＜0时,u_s(t)=-1V.在t=0时,u_s(t)突然增至1V,以后即一直保持为此值.试求电路中各元件的电压和电流,并绘波形图. <img src='https://img2.soutiyun.com/ask/2020-10-15/971636130963913.jpg' />