百度系统出问题,无法上传图片!
节点法: 左中右为a,b,c节点,最下为d节点,c为参考Vc=0,Va=-Ux,
b: Vb=0.5Ux,Ux=2Vb,-2Vb=Va,
a: (1/20 + 1/20 + 1/6)Va - Vb/20 - Vd/6=0,16Va-3Vb-10Vd=0,35Va-20Vd=0 ........(1)
d: (1/35 + 1/6)Vd - Va/6=-3.5,41Vd-35Va=-735 ..........(2)
(1)+(2) 21Vd=-735,Vd=-35v, i=(Vc-Vd)/35=1A。
追问abc节点在哪啊
追答![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/3812b31bb051f81927866c36cab44aed2e73e72f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)