//Determine the phase angle between 220V main and the current clc; clear; f=50;//Frequency of AC Mains Vni=100;//Voltage for non inductive load Ini=10; // Current drawn by a non inductive load Rni=Vni/Ini;// Resistance of an non inductive load Vac=220;// Supply from AC Mains Z=Vac/Ini; X=sqrt((Z^2)-(Rni^2)); phi=atand(X/Rni);// Phase Angle L=X/(2*%pi*f);//Inductance printf('The inductance of a reactor to be connected in series = %g H\n',L) printf('The phase angle between the 220V mains and the current = %g degrees\n',phi)