In the circuit shown below, let
Is=0.002;Vs=6;
R1=1500;R2=2000;R3=6000,R4=2500;R5=3000;
syms V1 V2
[V1,V2]=solve(-Is+V1/R4+(V1-Vs)/R1+(V1-V2)/R2,...
(V2-V1)/R2+V2/R5+(V2-Vs)/R3,V1,V2);
V1=vpa(V1,7)
V2=vpa(V2,7)
I4=V1/R4
I2=(V1-V2)/R2
I1=(Vs-V1)/R1
I3=(Vs-V2)/R3
I5=V2/R5
IVs=I4+I5-Is
I1a=-I3+IVs
Answers:
V1 =
4.936709
V2 =
3.468354
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