blob: c37ca0146221f56e1afeb7b0249a2fd35e8d7f2b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
clc//
//
//
//Variable declaration
R=0.06; //resistance(ohm)
I=15; //current(A)
D=5; //length(m)
MA=26.98; //atomic mass
rho_s=2.7*10^3; //density(kg/m^3)
NA=6.025*10^26; //avagadro number(per k mol)
e=1.602*10^-19; //charge(coulomb)
//Calculation
n=3*rho_s*NA/MA; //free electron concentration(electrons/m^2)
mew=1/(n*e*rho_s*10^-11); //mobility(m s-1 V-1)
E=I*R/D; //electric field(V/m)
vd=mew*E; //drift velocity of electrons(m/s)
//Result
printf("\n free electron concentration is %0.4f *10^29 electrons/m^2",n/10^29)
printf("\n mobility is %0.3f *10^-3 m s-1 V-1",mew*10^3)
printf("\n drift velocity of electrons is %0.2f *10^-3 m s-1",vd*10^3)
|
