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clear
//Given
P=400 //W
Ev=250 //V
Iv=2.5 //A
f=50
//Calculation
//
a=P/(Ev*Iv)
Z=Ev/Iv
R=Z*a
Xl=sqrt(Z**2-R**2)
L=Xl/(2*%pi*f)
//Result
printf("\n (i) The power factor is %0.3f lag",a)
printf("\n (ii) Resistance of the coil is %0.3f ohm", R)
printf("\n (iii) Inductance of the coil is %0.3f H",L)
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