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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 /1730/CH3/EX3.2 | |
| 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 '1730/CH3/EX3.2')
| -rwxr-xr-x | 1730/CH3/EX3.2/Exa3_2.sce | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/1730/CH3/EX3.2/Exa3_2.sce b/1730/CH3/EX3.2/Exa3_2.sce new file mode 100755 index 000000000..f09908537 --- /dev/null +++ b/1730/CH3/EX3.2/Exa3_2.sce @@ -0,0 +1,22 @@ +//Exa3.2
+clc;
+clear;
+close;
+// given data
+E=5.5;// in eV; (Fermi energy)
+E=E*1.6*10^-19;// in J
+miu_e=7.04*10^-3; //in m^2/V-s (Mobility of electrons)
+n=5.8*10^28 ; // in /m^3 (Number of conduction electrons/m^3)
+e=1.6*10^-19; // in coulomb
+m=9.1*10^-31;//in kg
+//(i) Relaxation time,
+tau=miu_e/e*m;
+disp("(i) Relaxation time is : "+string(tau)+" second");
+sigma=(n*e*miu_e);
+//(ii) Resistivity of conductor,
+rho=1/sigma;
+disp("(ii) Resistivity of conductor is : "+string(rho)+" ohm-meter");
+// (iii) Let Velocity of electrons with fermi energy = v
+v=sqrt(2*E/m);
+disp("(iii) Velocity of electron with Fermi-level is : "+string(v)+" m/s");
+
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