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clear//
//Variables
ND = 5 * 10**8 //Donor atom concentration (in atoms per cubic-centimeter)
NA = 6 * 10**16 //Acceptor atom concentration (in atoms per cubic-centimeter)
ni = 1.5 * 10**10 //intrinsic concentration (in atoms per cubic-centimeter)
//Calculation
n = ni**2/NA //number of electrons (in per cubic-centimeter)
p = ni**2/ND //number of holes (in per cubic-centimeter)
//Result
printf("\n Density of electrons is %0.3f cm**-3.\nDensity of holes is %0.3f cm**-3.",n,p)
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