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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3755/CH8/EX8.3/Ex8_3.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3755/CH8/EX8.3/Ex8_3.sce')
| -rw-r--r-- | 3755/CH8/EX8.3/Ex8_3.sce | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/3755/CH8/EX8.3/Ex8_3.sce b/3755/CH8/EX8.3/Ex8_3.sce new file mode 100644 index 000000000..453da9785 --- /dev/null +++ b/3755/CH8/EX8.3/Ex8_3.sce @@ -0,0 +1,19 @@ +clear
+//
+//
+//
+
+//Variable declaration
+me=9.1*10^-31; //mass of electron(kg)
+kb=1.38*10^-23; //boltzmann constant
+T=300; //temperature(K)
+h=6.62*10^-34; //planck's constant
+Eg=0.7; //band gap(eV)
+e=1.6*10^-19; //charge(c)
+
+//Calculation
+x=2*%pi*me*kb*T/(h^2);
+n=2*(x^(3/2))*exp(-Eg*e/(2*kb*T)); //density of holes and electrons(per m^3)
+
+//Result
+printf("\n density of holes and electrons is %0.3f *10^19 per m^3",n/10^19)
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