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// Exa 3.2
clc;
clear all;
// Given data
//Refer fig. 3.4
Rm=100;//Ohms
Im=50; ///micro Amp
// Solution
//For 0-1mA range
// Ish*Rsh=Im*Rm;
disp("The four linear equations are as follows:");
printf(' R1+R2+R3+R4 = %.2f \n ',50*100/950); //say-equaion (3.1)
//For 0-10 mA range
printf('R1+R2+R3-(50/9950)*R4= % .3f \n ',100*50/9950); //say-equation(3.2)
//For 0-50 mA range
printf('R1+R2-(50/49950)*R3-(50/49950)*R4 = %.3f \n ',100*50/49950); //say-equation(3.3)
//For 0-100mA range
printf('R1-(50/99950)*R2-(50/99950)*R3-(50/99950)*R4 = %.3f \n ',50*100/99950);//say-equation(3.4)
//converting it into matrix form
A=[1 1 1 1;1 1 1 -(50/9950);1 1 -(50/49950) -(50/49950);1 (-50/99950) (-50/99950) (-50/99950)];
B=[-50*100/950 ; -100*50/9950 ; -100*50/49950 ; -50*100/99950];
[R,y]=linsolve(A,B);A*R+B;//linear equaion solving function
disp("The value of R1,R2 R4 and R4 are given as follows-");
printf(' R1 = %.5f Ohms \n R2= %.5f Ohms \n R3= %.5f Ohms \n R4= %.5f Ohms \n ',R(1),R(2),R(3),R(4));
// The value of R3 vary due to round off errors
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