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//=====================================================================================
//Chapter 13 example 12
clc;clear all;
//variable declaration
f = 50; //number of reversals
m = 1; //mass
d = 7.8*10**3; //density
A = 4800; //area of the loop m^3
x = 200; //in AT/m
x1 = 10; // 1 unit in mm
y1 = 10; // 1 unit in mm
y = 0.1; //in T
//claculations
V = m/d; //volume of magnetic material in m^3
l = A*(x/x1)*(y/y1);
l1 = l*V*f; //hysteresis loss in watts per kg at 50 Hz
//result
mprintf("hysteresis loss at 50 Hz = %3.3f watts per kg ",l1);
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