initial commit / add all books

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+// Exa 4.11

+clc;

+clear;

+close;

+format('v',7)

+// Given data

+V = 230;// in V

+f = 50;// in Hz

+L = 0.06;// in H

+R = 2.5;// in ohm

+C = 6.8;// in µF

+C = C * 10^-6;// in F

+X_L = 2*%pi*f*L;// in ohm

+X_C = 1/(2*%pi*f*C);// in ohm

+Z = sqrt( (R^2) + ((X_L-X_C)^2) );// in ohm

+disp(Z,"The impedance in ohm is");

+I = V/Z;// in A

+disp(I,"The current in A is");

+// tan(phi) = (X_L-X_C)/R;

+phi = atand( (X_L-X_C)/R );// in lead

+disp("The phase angle between current and voltage is : "+string(abs(phi))+" lead");

+phi = acosd(R/Z);

+disp("The power factor is : "+string(cosd(phi))+" lead");

+P = V*I*cosd(phi);// in W

+disp(P,"The power consumed in W is");