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| author | priyanka | 2015-06-24 15:03:17 +0530 |
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| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /3492/CH5/EX5.1 | |
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initial commit / add all books
Diffstat (limited to '3492/CH5/EX5.1')
| -rw-r--r-- | 3492/CH5/EX5.1/Ex5_1.sce | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/3492/CH5/EX5.1/Ex5_1.sce b/3492/CH5/EX5.1/Ex5_1.sce new file mode 100644 index 000000000..972a80a68 --- /dev/null +++ b/3492/CH5/EX5.1/Ex5_1.sce @@ -0,0 +1,23 @@ +clc
+//Chapter5
+//Ex_1
+//Given
+e=1.6*10^-19 // in coulombs
+h=6.6*10^-34 //in J s
+m=9.1*10^-31 //in Kg
+me=1.08*m
+mh=0.56*m
+T=300 //in Kelvin
+Eg=1.10 // in eV
+ue=1350//in cm2/V/s
+uh=450//in cm2/V/s
+k=1.38*10^-23 //m2 kg s-2 K-1
+Nc=2*((2*%pi*me*k*T)/h^2)^(3/2) //in m^-3
+Nc=Nc*10^-6 //in cm^-3
+Nv=2*((2*%pi*mh*k*T)/h^2)^(3/2) //in m^-3
+Nv=Nv*10^-6 //in cm^-3
+ni=sqrt(Nc*Nv)*exp(-Eg*e/(2*k*T))
+disp(ni,"Intrinsic concentration of Si in cm^-3 is")
+sigma=e*ni*(ue+uh)
+p=1/sigma
+disp(p,"Intrinsic resistivity of Si in ohm cm is")
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