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diff --git a/3775/CH3/EX3.7/Ex3_7.sce b/3775/CH3/EX3.7/Ex3_7.sce
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+//Ex 3.7 page 123
+
+clc;
+clear;
+close;
+
+R=2;// ohm
+L=0.3;// H
+E=100;// V
+Vs=230;// V
+f=50;// Hz
+alpha = 30;// degree
+Vm=Vs*sqrt(2);// V
+Vo=2*Vm/%pi*cos(alpha*%pi/180);// V
+printf(' Average load voltage = %.2f V', Vo)
+Io=(Vo)/R;// A
+printf('\n Average load current = %.2f A', Io)
+Is=Io;// A
+Is1=4*Io/%pi/sqrt(2);// A
+PF=Vo*Io/Vs/Is;// power factor
+printf('\n Power factor = %.4f',PF)