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// Example 9.15
// Given v= 55 Sin(wt)V & i= 6.1Sin(wt-pi/5)A
Q=%pi/5; // Phase Angle
Vm=55; // Peak Value of Voltage
Im=6.1; // Peak Value of Current
V=Vm/sqrt(2); // Rms value of Voltage
I=Im/sqrt(2); // Rms value of Current
Pav=V*I*cos(Q); // Average Value of power
disp(' Average value of Power = '+string(Pav)+' Watt');
Pa=V*I; // Apparent Value of power
disp(' Apparent value of Power = '+string(Pa)+' VA');
P=Pav-(V*I*cos(0.6-Q)); // Instant Power at (wt= 0.3)
disp(' Instant Power at (wt= 0.3) = '+string(P)+' VA');
pf=cos(Q); // Power Factor
disp(' Power Factor = '+string(pf*100)+' %');
// p 323 9.15
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