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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 /2672/CH4/EX4.28 | |
| 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 '2672/CH4/EX4.28')
| -rwxr-xr-x | 2672/CH4/EX4.28/Ex4_28.sce | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/2672/CH4/EX4.28/Ex4_28.sce b/2672/CH4/EX4.28/Ex4_28.sce new file mode 100755 index 000000000..bc0bb2cbd --- /dev/null +++ b/2672/CH4/EX4.28/Ex4_28.sce @@ -0,0 +1,28 @@ +//Example 4_28
+clc;
+clear;
+close;
+format('v',8);
+//data for intrinsic Ge
+//n0=p0=ni;///for intrinsic
+ni=2.5*10^13;//cm^-3
+mu_n=3800;//cm^2/V-s
+mu_p=1800;//cm^2/V-s
+mu=mu_n+mu_p;//cm^2/V-s
+e=1.6*10^-19;//C/electron
+sigma=e*ni*(mu);//(s/cm)
+disp(sigma,"(a) Conductivity of intrinsic Ge(s/cm) : ");
+format('v',5);
+n=4.41*10^22;//cm^-3//Concentration of Ge atom
+ND=n/10^7;//cm^-3
+n0=ND;//cm^-3
+p0=ni^2/ND;//cm^-3
+sigma=n0*e*mu_n;//s/cm(n0<<p0, n0 neglected)
+disp(sigma,"(b) Conductivity(s/cm)");
+NA=n/10^7;//cm^-3
+p0=NA;//cm^-3
+n0=ni^2/NA;//cm^-3
+sigma=p0*e*mu_p;//s/cm(p0<<n0, p0 neglected)
+disp(sigma,"(c) Conductivity(s/cm)");
+
+
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