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+//Chapter-5, Example 5.27, Page 187
+//=============================================================================
+clc
+clear
+//INPUT DATA
+V=200;//voltage in volts
+f=50;//frequency in hz
+R1=10;//resistance in ohms
+L1=0.0023;//inductance in henry
+R2=5;//resistance in ohms
+L2=0.035;//inductance in henry
+//CALCULATIONS
+Xl1=(2*%pi*f*L1);//inductive reactance in branch 1 in ohm
+Xl2=(2*%pi*f*L2);//inductive reactance in branch 2 in ohm
+Y1=inv(10+(%i*7.23));//admittance of branch 1 in mho
+Y2=inv(5+(%i*10.99));//admittance of branch 2 in mho
+Y=Y1+Y2;//total admittance in mho
+I1=V*(Y1);//current through branch1
+I2=V*(Y2);//current through branch2
+I=I1+I2;//total current in A
+theta=atan(imag(I)/real(I));//angle in radians
+pf_of_combination=cos(theta);//powerfactor---->lagging
+mprintf("Thus currents in branch1,branch2 and total current are %2.1f A,%2.1f A and %2.2f A respectively\n",abs(I1),abs(I2),abs(I));
+mprintf("pf of combination is %1.3f",pf_of_combination);
+//=================================END OF PROGRAM======================================================================================================