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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/CH18/EX18.9 | |
| 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/CH18/EX18.9')
| -rwxr-xr-x | 3020/CH18/EX18.9/ex18_9.sce | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/3020/CH18/EX18.9/ex18_9.sce b/3020/CH18/EX18.9/ex18_9.sce new file mode 100755 index 000000000..bb0919eff --- /dev/null +++ b/3020/CH18/EX18.9/ex18_9.sce @@ -0,0 +1,11 @@ +clc;
+clear all;
+m0=9.1e-31;//mass of electron
+h=6.626e-34;//plank constant
+k=1.38e-23;//boltzman constant
+Eg=0.7;//bandgap energy in eV
+e=1.6e-19;//charge of electron
+T=300;//temperature in K
+ni=2*((2*%pi*m0*k*T/(h^2))^1.5)*exp((-Eg*e)/(2*k*T))
+disp('m^-3',ni,'intrinsic concentration is:')
+// slight variation in answer as compared to textbook... checked in calculator
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