initial commit / add all books

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+                          //EXAMPLE 2-67      PG NO-108-109

+Z1=5;

+V=100+%i*200;

+I1=16;                      //CURRENT

+P1=I1*I1*Z1;

+disp('i)  POWER (P1) is    =  '+string (P1) +' W ');

+P2=5000-P1;

+disp('ii)  POWER (P2) is    =  '+string (P2) +' W ');

+Q1=-69.02;

+cos(-69.02)=0.35;

+Z2=Z1/0.358;

+disp('iii)  IMPEDANCE (Z2) is  in polar form   =  '+string (Z2) +'  ohms ');

+X1=Z2*-0.933;

+disp('i)   (X1) is  in polar form   =  '+string (X1) +'  ohms ');

+Z3=5-%i*13.04;

+I1=V/Z3;

+disp('ii)  CURRENT (I1) is  in polar form  =  '+string (I1) +' A ');

+P3=3720;

+I2=P3/(223.6*0.8);

+disp('ii)  CURRENT (I2) is  in polar form  =  '+string (I2) +' A ');

+z2=8.6+%i*6.45;

+I3=V/z2;

+disp('ii)  CURRENT (I3) is  in polar form  =  '+string (I3) +' A ');

+I=I1+I3;

+disp('ii)  CURRENT (I) is  in polar form  =  '+string (I) +' A ');

+Z=V/I;

+disp('iii)  IMPEDANCE (Z) is  in polar form   =  '+string (Z) +'  ohms ')