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//To create an instrument that measures voltages and currents upto a rated value
clc;
clear;
Rm=10;
Im=50*(10^-3);
V=750;
I=100;
//To Calculate the required voltage a resistor should be added in series with the internal resistance
R=poly([0 1],'R','c');
sr=Im*(R+Rm)-V;
R=roots(sr);//Characteristic equation to find R
// To attain the required current, a resistor should be added in parallel to the internal resistance
r=poly([0 1],'r','c');// Characteristic equation to find r
pr=Im*(r+Rm)-(I*r);
r=roots(pr);
printf('To Read 750 V a series resitance of %g ohms should be connected to the instrument \n',R)
printf('To Read 100 A a parallel resitance of %g milli ohms should be connected to the instrument \n',r*1000)
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