//Example 1.3(b) clc; Vs=1000; //Voltmeter Sensitivity Fs=150; //Scale of Voltmeter Vt=30; //Voltmeter reading It=600*10^-3; //milliammeter reading //Circuit resistance neglecting milliammmeter resistance Rt=Vt/It; Rv=Vs*Fs; //Voltmeter Resistance Rx=Rv*Rt/(Rv-Rt); //Value of unknown resistance Pe=100*(Rx-Rt)/Rx; //Percentage Error printf('\nApparent value of unknown Resistance = %.2f ohm\n',Rt) printf('\nActual value of unknown Resistance = %.4f ohm\n',Rx) printf('\nPercentage error = %.4f Percent \n',Pe)