3769/CH26/EX26.9/Ex26_9.sce


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clear
//Given
a=5                 ///ohm/cm
ue=3900              //cm**2/vs
e=1.6*10**-19

//Calculation
Nd=a/(ue*e)

//Result
printf("\n Number density of donor atom is %0.2f *10**15 /cm**3",Nd*10**-15)