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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 /3492/CH3/EX3.10 | |
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Diffstat (limited to '3492/CH3/EX3.10')
| -rw-r--r-- | 3492/CH3/EX3.10/Ex3_10.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/3492/CH3/EX3.10/Ex3_10.sce b/3492/CH3/EX3.10/Ex3_10.sce new file mode 100644 index 000000000..9a63e513a --- /dev/null +++ b/3492/CH3/EX3.10/Ex3_10.sce @@ -0,0 +1,20 @@ +clc
+//Chapter3
+//Ex_10
+//Given
+h_bar=1.054*10^-34 // in J s
+m=9.1*10^-31 //in Kg
+e=1.6*10^-19 // in coulombs
+Vo=10 //in ev
+Vo=Vo*e //in J
+E=7 // in eV
+E=E*e // in J
+a=5*10^-9 // in m
+alpha=sqrt(2*m*(Vo-E)/h_bar^2)
+To=16*E*(Vo-E)/Vo^2
+T=To*exp(-2*alpha*a)
+disp(T,"Transmission coefficient of condution electrons in copper is")
+a=1*10^-9 // in m
+T=To*exp(-2*alpha*a)
+disp(T,"Transmission coefficient if the oxide barrier is 1 nm is")
+// slight change in the answer due to approximations in alpha value
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