如图,a,b,c对应为节点1,2,3,Va=10v
b: (1+0.5)Vb - 0.5Va=-i5,Va-3Vb=2i5.......(1)
c: (1+0.5)Vc -Va=i5,3Vc-2Va=2i5.........(2)
补: Vc-Vb=5............(3)
解(1)(2) 3Vc+3Vb=3Va,Vc+Vb=10.....(4)
解(3)(4) 2Vb=5,Vb=2.5v,Vc=7.5v;
i4=(Va-Vc)=2.5A,i6=0.5(Va-Vb)=3.75A,i1=i4+i6=6.25A,i3=0.5Vc=3.75A
i2=Vb=2.5A,i5=i6-i2=1.25A。