//Ex 3.9 page 124 clc; clear; close; R=50;// ohm Vs=230;// V f=50;// Hz alpha = 30;// degree Vm=Vs*sqrt(2);// V Vo=2*Vm/%pi*cos(alpha*%pi/180);// V printf(' (i) Average voltage across 50 ohm resistor = %.2f V', Vo) Io=(Vo)/R;// A Ior=Io/sqrt(2);// A printf('\n (ii) rms current = %.4f A', Ior)