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//===========================================================================
//chapter 7 example 11
clc;clear all;
//variable declaration
I1 = 2.5; //current across an inductive load in A
I2 = 2.4; //current across an non- inductive resistor in A
I3 = 4.5; //current across the two in series in A
V = 250; //supply voltage in V
//calculations
R = V/I2; // non- inductive resistance in Ω
P = ((I3^2)-(I1^2)-(I2^2))*(R/2); //power absorbed by the load in watts
Z = V/I1; //load impedance in Ω
x = ((I3^2)-(I1^2)-(I2^2))/(2*I1*I2); //cos(phi)
//result
mprintf("power absorbed by the load = %3.2f watts",P);
mprintf("\nload impedance = %3.2f Ω",Z);
mprintf("\npower factor cos (phi) = %3.4f lagging",x);
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