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clc//
//
//
//Variable declaration
Na=5*10^23; //number of atoms(atoms)
Nd=3*10^23; //number of atoms(atoms)
ni=2*10^16; //intrinsic charge carriers(per m^3)
//Calculation
p=2*(Na-Nd)/2; //hole concentration(per m^3)
n=ni^2/p; //electron concentration(per m^3)
//Result
printf("\n electron concentration is %0.3f *10^9 per m^3",n/10^9)
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