In the circuit shown below, let
Is=0.001;Vs=5;
R1=1000;R2=2500;R3=5000,R4=2000;
syms V1 V2
[V1,V2]=solve(V1/R4+(V1-Vs)/R1+(V1-V2)/R2,...
(V2-V1)/R2-Is+(V2-Vs)/R3,V1,V2);
V1=vpa(V1,7)
V2=vpa(V2,7)
I4=V1/R4
I2=(V2-V1)/R2
I1=(Vs-V1)/R1
I3=(V2-Vs)/R3
IVs=I4-Is
2
I1a=I3+IVs
Answers:
V1 =
3.877551
V2 =
5.918367
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