如图电路中,求电压U为（ ）http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/e99cce58731f4a5f945b253ea18c3918.png

在图16.26所示电路中,已知<img src='https://img2.soutiyun.com/ask/2020-10-06/970865523313676.png' />,试求输出电压u。 <img src='https://img2.soutiyun.com/ask/2020-10-06/970865474211867.png' />

电路如图题6-37所示，已知i(t)=10A，t≥0;u(0)=1V。求电压u(t)的零输人响应和零状态响应，稳态响应和瞬态响应。 <img src='https://img2.soutiyun.com/ask/2020-08-25/967214993014152.png' />

<img src='https://img2.soutiyun.com/ask/2020-10-07/970908982250754.png' />

如图所示电路中，输出电压U。与输入电压Ui1,Ui2的关系式为()。 <img src='https://img2.soutiyun.com/ask/uploadfile/5985001-5988000/cfadc566a8cfabd9c86aca69280248e8.jpg' /> A.<img src='https://img2.soutiyun.com/ask/uploadfile/5985001-5988000/6d645af1a0458b8cbcb9f3bd19cd7ea8.jpg' /> B.<img src='https://img2.soutiyun.com/ask/uploadfile/5985001-5988000/335710662224a9524791b5869b19ccd3.jpg' /> C.<img src='https://img2.soutiyun.com/ask/uploadfile/5985001-5988000/c09ffef8651c3bfc2d1a549388acd535.jpg' /> D.<img src='https://img2.soutiyun.com/ask/uploadfile/5985001-5988000/e482d9a546606b704045b155045deec5.jpg' />

<img src='https://img2.soutiyun.com/ask/2020-10-10/9711752938202.jpg' />

<img src='https://img2.soutiyun.com/ask/2020-07-24/96445118331937.png' />

在题6.8图所示电路中,求开关S闭合瞬间t(=0)电路小的电压u_C、u_L。 <img src='https://img2.soutiyun.com/ask/2020-10-07/970927159291421.png' />

图题11-3所示电路中,已知<img src='https://img2.soutiyun.com/ask/2020-07-24/964450491997828.png' />,试求输出电压u(t)。 <img src='https://img2.soutiyun.com/ask/2020-07-24/964450470432595.png' />

电路如图所示，已知R=50Ω，L=2.5mH，C=5μF．电源电压U=10V，角频率ω=10⁴rad/s，求电流<img src='https://img2.soutiyun.com/latex/latex.action' />、<img src='https://img2.soutiyun.com/ask/uploadfile/5499001-5502000/d1af2cd2ab3ec9264f1b32c97996ae01.png' /><img src='https://img2.soutiyun.com/ask/uploadfile/5499001-5502000/7953321cf378e46b1e9d47bfb6637091.png' />和<img src='https://img2.soutiyun.com/ask/uploadfile/5499001-5502000/20b08680be5b4effb9d6d2076513acdc.png' />，并画出其相量图。 <img src='https://img2.soutiyun.com/ask/uploadfile/5499001-5502000/bbdcd7c3cadc288f80e41810febcd2b9.png' />

A．48V B．24V C．4.8V D．8V

<img src='https://img2.soutiyun.com/shangxueba/ask/50796001-50799000/50796740/967040986097027.png' />

A．12.8W B．16W C．-12.8W D．-16W

电路如图9-3所示，e(t)为输入电压源，v0(t)为输出电压。 (1)求系统的冲激响应; (2)求该电路的传输函数H(a)，并写出微分方程， (3)通过变换得到<img src='https://img2.soutiyun.com/ask/2020-09-16/96909783733856.png' />，指出G(s)为何种类型滤波器的传输函数？(低通、高通、带通、带阻或全通) <img src='https://img2.soutiyun.com/ask/2020-09-16/969097862355991.png' />

<img src='https://img2.soutiyun.com/ask/2020-09-17/96918661355307.png' />