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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /3020/CH16/EX16.12 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '3020/CH16/EX16.12')
| -rwxr-xr-x | 3020/CH16/EX16.12/ex16_12.sce | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/3020/CH16/EX16.12/ex16_12.sce b/3020/CH16/EX16.12/ex16_12.sce new file mode 100755 index 000000000..69209d548 --- /dev/null +++ b/3020/CH16/EX16.12/ex16_12.sce @@ -0,0 +1,16 @@ +clc;
+clear all;
+e = 1.6e-19; // Charge of an electron
+m = 9.11e-31; // Mass of an electron in Kg
+rho = 1.54e-8; // Resistivity
+EF= 5.5*e; // Fermi energy in joule
+n = 5.8e28; // Concentration of electrons per cubic meters
+E = 100; // Electric field in V/m
+tr = m/(rho*n*e^2); // Relaxation time
+u = (e*tr)/m; // Mobility of electrons
+disp('m^2/(V.s)',u,'Mobility of electrons')
+vd = (e*tr*E)/m; //drift velocity of electrons
+disp('m/s',vd,'The drift velocity of electrons is')
+VF = sqrt((2*EF)/m);// Fermi velocity
+lambda = VF*tr; // Mean free path
+disp('m',lambda,'The mean free path is')
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