资源描述：
《电路理论基础习题答案.doc》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、电路理论基础习题答案第一章1-1.(a)、(b)吸收10W；(c)、(d)发出10W.1-2.–1A;–10V;–1A;–4mW.1-3.–0.5A;–6V;–15e–tV;1.75cos2tA;3Ω;1.8cos22tW.1-4.u=104i;u=-104i;u=2000i;u=-104i;0tmspmW41002250tmsimA4101-5.i,A0.4.75t0.25 1.25ms-0.4(d)1-6.0.1A.1-7.u,V1000 10t,ms(e)u,V800 10-20 t,ms(f)iA0ms11231-e-tt1-8.2mF;4mC;0;4mJ.1-9.9.6V,
2、0.192W,1.152mJ;16V,0,3.2mJ.p(W)100 12t(s)-101-10.1–e-106tA,t>0取s.1-11.3H,6(1–t)2J;3mH,6(1–1000t)2mJ;1-12.0.4F,0.1-13.供12W;吸40W;吸2W;(2V)供26W,(5A)吸10W.1-14.–40V,–1mA;–50V,–1mA;50V,1mA.1-15.0.5A,1W;2A,4W;–1A,–2W;1A,2W.1-16.10V,50W;50V,250W;–3V,–15W;2V,10W.1-17.(a)2V;R耗4/3W;US:–2/3W,IS:2W;(b)–3V;R耗
3、3W;US:–2W,IS:5W;(c)2V,–3V;R耗4W;3W;US:2W,IS:5W;1-18.24V,发72W;3A,吸15W;24V6电压源;3A↓电流源或5/3Ω电阻.1-19.0,US/RL,US;US/R1,US/R1,–USRf/R1.1-20.6A,4A,2A,1A,4A;8V,–10V,18V.1-21.K打开：(a)0,0,0;(b)10V,0,10V;(c)10V,10V,0;K闭合:(a)10V,4V,6V;(b)4V,4V,0;(c)4V,0,4V;1-22.2V;7V;3.25V;2V.1-23.10Ω.1-24.14V.1-25.–2.333V,1.
4、333A;0.4V,0.8A.1-26.12V,2A,–48W;–6V,3A,–54W.※第二章2-1.2.5Ω;1.6R;8/3Ω;0.5R;4Ω;1.448Ω;.R/8;1.5Ω;1.269Ω;40Ω;14Ω.2-2.11.11Ω;8Ω;12.5Ω.2-3.1.618Ω.2-4.400V;363.6V;IA=.5A,电流表及滑线电阻损坏.2-6.5kΩ.2-7.0.75Ω.2-8.10/3A,1.2Ω;–5V,3Ω;8V,4Ω;0.5A,30/11Ω.2-9.1A,2Ω;5V,2Ω;2A;2A;2A,6Ω.2-10.–75mA;–0.5A.2-11.6Ω;7.5Ω;0;2.1Ω.
5、2-12.4Ω;1.5Ω;2kΩ.2-13.5.333A;4.286A.2-14.(a)–1A↓;(b)–2A↓,吸20W.2-16.3A.2-17.7.33V.2-18.86.76W.2-19.1V,4W.2-20.64W.2-21.15A,11A,17A.2-23.7V,3A;8V,1A.2-24.4V,2.5V,2V.2-26.60V.2-27.4.5V.2-28.–18V.2-29.原构成无解的矛盾方程组;(改后)4V,10V.2-30.3.33kV,50kV.2-31.R3(R1+R2)iS/R1.2-32.可证明IL=－uS/R3.2-33.–2;4.2-34.(uS1+
6、uS2+uS3)/3.※第三章3-1.–1+9=8V;6+9=15V;sint+0.2e–tV.3-2.155V.3-3.190mA.3-4.1.8倍.3-5.左供52W,右供78W.3-6.1V;1A;0.75A.3-7.3A;1.33mA;1.5mA;2/3A;2A.3-8.20V,–75.38V.3-9.–1A;2A;–17.3mA.3-10.5V,20V;–2V,4V.3-12.4.6V.3-13.2V;0.5A.3-14.10V,5kV.3-15.4/3V,75W;4/3V,4.69W.3-16.1V,2.25W.3-18.50V.3-19.0.2A.3-20.1A.3-2
7、1.1.6V.3-22.4A;–2A.3-23.23.6V;5A,10V.3-24.52V.※第四章4-1.141.1V,100V,50Hz,0.02s,0o,–120o;120o.4-2.7.07/0oA,1/–45oA,18.75/–40.9oA.4-3.,7.75mA.4-4.10/53.13oA,10/126.87oA,10/–126.87oA,10/–53.13oA；各瞬时表达式略。4-5.67.08V,30V,25V;12V,0,12V,0;0
