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+clc//
+//
+//
+
+//Variable declaration
+d=7.8*10^3; //density(kg/m^3)
+n=6.025*10^26; //number of atoms
+w=157.26; //atomic weight(kg)
+mewm=9.27*10^-24;
+mew=7.1*mewm;
+mew0=4*%pi*10^-7;
+
+//Calculation
+N=d*n/w; //number of atoms
+mew_B=N*mew/10^3; //magnetic moment per gram(Am^2)
+Bs=N*mew0*mew;
+
+//Result
+printf("\n magnetic moment per gram %0.3f Am^2",mew_B)
+printf("\n magnetic moment per gram is %0.4f Wb/m^2",Bs)
+printf("\n answer given in the book varies due to rounding off errors")