Question

Problem 4: The equations describing the circuit shown in Figure P38 are -1+Ri+Ri4 = 0 -Rai4Rzi2+Riz = 0 -Ris+Rsis + v2 = 0 ii
Please solve using MatLab program. Thanks, I will give good rating!
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Answer #1

matlab code:

clc;clear all;
V1=100;R1=5000;
R2=100000;R3=200000;
R4=150000;
R5=250000;
i1=0.001; %assumed current
%V4 is voltage across R4
V4=V1-(i1*R1)
i4=V4/R4
i2=i1-i4
%V5is the voltage across R5
V5=V4-(i2*R2)
i5=V5/R5
i3=i2-i5
%V2 second source voltage
V2=V5-(i3*R3)

output:


V4 =

95


i4 =

6.3333e-04


i2 =

3.6667e-04


V5 =

58.3333


i5 =

2.3333e-04


i3 =

1.3333e-04


V2 =

31.6667

the possible range for V2=31.667 to 100 V

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