initial commit / add all books

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+//Caption:Determine load current,load voltage,load power and power factor 

+//Exa:1.6

+clc;

+clear;

+close;

+//Refer to the fig:1.16

+R=40;//in ohms

+L=%i*30;//in ohms

+V=117*((cosd(0)+%i*sind(0)));//in Volts

+//Equivalent load impedance is obtained by parallel combination of Resistance R and Inductance L

+Z_L=(R*L)/(R+L);//load impedance (in Ohms)

+Z1=0.6+%i*16.8;// in Ohms

+Z=Z_L+Z1;//Equivalent impedance of circuit (in Ohms) 

+I=V/Z;//current through load (in Amperes)

+r1=real(I);

+i1=imag(I);

+I_mag=sqrt(r1^2+i1^2);//magnitude of current flowing through load (in Amperes)

+disp(I_mag,'Reading of ammeter (in Amperes)=');

+V_L=I*Z_L;//voltage across load (in Volts)

+r2=real(V_L);

+i2=imag(V_L);

+V_L_mag=sqrt(r2^2+i2^2);//magnitude of voltage across load (in Volts)

+disp(V_L_mag,'Reading of voltmeter (in Volts)=');

+P=real (V_L*conj(I));//Power developed (in Watts)

+disp(P,'Reading of wattmeter (in Watts)=');

+pf=P/(V_L_mag*I_mag);//Power factor

+disp(pf,'power factor=')
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