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//Example 4.25
close;
clc;
V=3; //in volts
Rm=50; //In ohms
Rh=10; //in ohms
Im=10*10^-3; //in amperes
Ih=0.5*Im; //Half scale definition
Vm=Ih*Rm; //Voltage across the movement
//Voltage across unknown resitence =Voltage across meter movement
Ix=Vm/Rh; //Current through unknown resistence
Ish=Ix-Im/2; //Current through shunt
Rsh=Vm/Ish; //Shunt resistence
printf('\nValue of Shunt resistence Rs = %.2f ohm\n',Rsh)
//Calculation of R1
It=Ix+Im/2+Ish; //Total battery current
V_drop=V-Vm; //Voltage drop across limiting resistor
R1=V_drop/It;
printf('Value of limiting resistence R1 = %.2f ohm\n',R1)
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