如图7-41所示电路中，R=1kΩ.，C=1μF，Ui=1V，电容无初始储能，如果开关S在t=0时刻闭合，则给出输出电压波形的是（）。https://assets.asklib.com/psource/2015110111311967106.jpg

A . 0.63 B . 0.10 C . 0.31 D . 0.45

A . 10 B . 3.3 C . 1 D . 3.63

A . 4 B . 6.8 C . 8 D . 9

A . 0A B . 0.1A C . -0.1A D . 100A

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

A . 40 B . 12 C . 21 D . 62

A . －50 B . 0 C . 10 D . 50

A．<img src='https://img2.soutiyun.com/ask/uploadfile/5451001-5454000/47b2a510e0a9d766936e559a75f13cc6.jpg' /> B．<img src='https://img2.soutiyun.com/ask/uploadfile/5451001-5454000/ba7c4c26f9e0aabf45a5288979363c3b.jpg' /> C．<img src='https://img2.soutiyun.com/ask/uploadfile/5451001-5454000/b741de6e39726b6e8d48e6783572fa50.jpg' /> D．<img src='https://img2.soutiyun.com/ask/uploadfile/5451001-5454000/df5c3cc12ef18067afdb65ba624ba90f.jpg' /> <img src='https://img2.soutiyun.com/ask/uploadfile/5451001-5454000/725c8102fac358252108dc862a676ffc.jpg' />

<img src='https://img2.soutiyun.com/ask/2020-12-29/978118636637367.png' />

在题图E5-2所示电路中，R=1kΩ，E=10V，u₁=20sin(ωt)V，试分别画出输出电压u₀的波形。二极管的正向压降忽略不计。 <img src='https://img2.soutiyun.com/ask/2020-11-14/974196101016121.png' />

<img src='https://img2.soutiyun.com/shangxueba/ask/18381001-18384000/18381704/2015110111311967106.jpg' /> A．<img src='https://img2.soutiyun.com/shangxueba/ask/18381001-18384000/18381704/2015110111313843578.jpg' /> B．<img src='https://img2.soutiyun.com/shangxueba/ask/18381001-18384000/18381704/2015110111315151618.jpg' /> C．<img src='https://img2.soutiyun.com/shangxueba/ask/18381001-18384000/18381704/2015110111320582310.jpg' /> D．<img src='https://img2.soutiyun.com/shangxueba/ask/18381001-18384000/18381704/2015110111323019711.jpg' />

<img src='https://img2.soutiyun.com/ask/2020-10-07/970928095949995.png' />

试写出题图12-4(a)、(b)所示双口网络的转移电流比，并用计算机程序画出电阻R=1kΩ和电容C=1μF时电路的幅频特性曲线。 <img src='https://img2.soutiyun.com/ask/2020-07-07/962979932609709.png' /><img src='https://img2.soutiyun.com/ask/2020-07-07/962979942033248.png' /><img src='https://img2.soutiyun.com/ask/2020-07-07/962979947940586.png' /><img src='https://img2.soutiyun.com/ask/2020-07-07/962979953660913.png' /><img src='https://img2.soutiyun.com/ask/2020-07-07/962979959421242.png' />

<img src='https://img2.soutiyun.com/ask/2020-08-25/967199588716077.png' />

<img src='https://img2.soutiyun.com/ask/2020-07-24/964447206737922.png' />

电路如题图5-8所示，已知R₁=10Ω，C=10³μF，R₂=0.5Ω，ω=1000rad/s，<img src='https://img2.soutiyun.com/ask/2021-01-03/978529389968761.png' />求当电流有效值I最大时，电感L为何值？ <img src='https://img2.soutiyun.com/ask/2021-01-03/978529403802552.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' />

在图6.7(教材图 6.2.1)所示的多谐振荡器电路中，已知R=R1=1kΩ,R2=2kΩ,C=0.1μF,试求输出波形的周期T和频率f0。 <img src='https://img2.soutiyun.com/ask/2020-07-13/963479927508199.png' />

题7-27图所示电路中，已知i_S=10e(t)A，R₁=1Ω，R₂=2Ω，C=1μF，u_C(0-)=2V，g=0.25s。求全响应i₁(t)、i_C(t)、u_C(t)。 <img src='https://img2.soutiyun.com/ask/2020-09-02/967900598791111.png' />

<img src='https://img2.soutiyun.com/ask/2020-11-14/974195543360225.png' />

<img src='https://img2.soutiyun.com/ask/2020-10-07/970927289819887.png' />

<img src='https://img2.soutiyun.com/ask/2020-10-07/97092736294907.png' />