如图所示电路中，已知，，求输出电压。81b9160d8ed706ca8f24074bf7dc2e6f

A . －6 B . －4 C . 4 D . 6

A .https://assets.asklib.com/psource/2015110110304436211.jpg B .https://assets.asklib.com/psource/2015110110305876774.jpg C .https://assets.asklib.com/psource/2015110110311388037.jpg D .https://assets.asklib.com/psource/2015110110312795784.jpg

A . 40 B . 20 C . 15 D . 12.7

A . 36 B . 12 C . 4.5 D . 9

已知如图所示电路中I₁=I₂=10A。求<img src='https://img2.soutiyun.com/ask/2019-12-11/94494300886036.png' />。 <img src='https://img2.soutiyun.com/ask/2019-12-11/944943016444169.png' />

已知如图8.4.6所示电路中双口网络的Y参数为y₁₁=1s，y₁₂=2s，y₂₁=3s，y₂₂=2s，<img src='https://img2.soutiyun.com/latex/latex.action' />=4∠30°V，R_S=10Ω，Z_L=2∠45°Ω，求输出端电压<img src='https://img2.soutiyun.com/latex/latex.action' />。 <img src='https://img2.soutiyun.com/ask/5385001-5388000/d4a22865cc684231a862d5f1ada4d17b.jpg' />

<img src='https://img2.soutiyun.com/shangxueba/ask/4455001-4458000/4455766/ct_jggysbnjxj_jggysbnjxchoose_0443(106).jpg' /> A．1.5V B．-0.7V C．-15.6mV D．7.5mV

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/2020-06-29/962270064181147.jpg' />

<img src='https://img2.soutiyun.com/shangxueba/ask/18387001-18390000/18389473/2015110110302722226.jpg' /> A．<img src='https://img2.soutiyun.com/shangxueba/ask/18387001-18390000/18389473/2015110110304436211.jpg' /> B．<img src='https://img2.soutiyun.com/shangxueba/ask/18387001-18390000/18389473/2015110110305876774.jpg' /> C．<img src='https://img2.soutiyun.com/shangxueba/ask/18387001-18390000/18389473/2015110110311388037.jpg' /> D．<img src='https://img2.soutiyun.com/shangxueba/ask/18387001-18390000/18389473/2015110110312795784.jpg' />

<img src='https://img2.soutiyun.com/ask/2020-06-29/96227380449508.jpg' />

<img src='https://img2.soutiyun.com/ask/2020-09-17/969206067743786.png' /> (1)请为该电路T₁、T₂选择合适的三极管，满足最大管耗、最大集电极电流和最大管压降的要求. (2)若减小负载电阻的阻值，输出级保护电路工作前，负载电阻的最小值是多少？

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' />

<img src='https://img2.soutiyun.com/ask/2020-09-14/968971604757546.png' />

二极管检波电路如图所示，设K_d=1，求下列情况下的输出电压V₀(t)，并定性画出其波形。 <img src='https://img2.soutiyun.com/ask/2020-08-28/967471888670735.png' /> <img src='https://img2.soutiyun.com/ask/2020-08-28/967471896518184.png' />

<img src='https://img2.soutiyun.com/1/2021-03-17/984842242668379.png' />

A．6V B．-6V C．-0.6V D．0.6V

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' />

电路如图6-2(a)所示，图(b)为电感电压的波形图，已知R=10Ω，L=4 H，电感电流i_L(0)=0，求电流i_L(t)。 <img src='https://img2.soutiyun.com/ask/2020-08-23/967073690265931.png' />