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+
+                     // Example  10.4
+
+                      // Given V= 160+i120 & I= -4+i10
+Vi= 160+%i*120;       // Sinusoidal Voltage  i.e  200<36.87
+Ii= -4+%i*10;         // Sinusoidal Current   i.e  10.77<111.8 
+Z=Vi/Ii;                // Impedance
+Q=-74.93;             // Phase Angle 
+V=200;                // peak Value of Voltage 
+I=10.77;              // peak Value of Current
+disp(' Impedance = '+string(Z)+' Ohms');
+
+pf=cosd(Q);           // Power Fector
+disp(' Power Factor = '+string(pf)+' Leading');
+disp(' the Circuit is Capacitive , Becuase Imaginary part of impedance is negative .');
+
+Pa=V*I*cosd(Q);       // Active Power 
+disp(' Active Power = '+string(Pa)+' Watt');
+
+Pr=V*I*sind(Q);       // Reactive Power
+disp(' Reactive Power = '+string(-Pr)+' VAR');
+
+
+
+
+
+        //   p 348     10.4
+