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//Example number 8.5, Page number 171
clc;clear;
close;
//Variable declaration
Is=1.96*10**6; //saturation magnetisation(amp/m)
a=3*10**-10; //cube edge(m)
mewB=9.27*10**-24; //bohr magneton(amp/m**2)
n=2; //number of atoms
//Calculation
N=n/(a**3);
mew_bar=Is/(N*mewB); //average number of bohr magnetons(bohr magneton/atom)
//Result
printf("average number of bohr magnetons is %.3f bohr magneton/atom",mew_bar)
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