diff options
Diffstat (limited to '3875/CH12/EX12.6/Ex12_6.sce')
| -rw-r--r-- | 3875/CH12/EX12.6/Ex12_6.sce | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/3875/CH12/EX12.6/Ex12_6.sce b/3875/CH12/EX12.6/Ex12_6.sce new file mode 100644 index 000000000..62e884fe1 --- /dev/null +++ b/3875/CH12/EX12.6/Ex12_6.sce @@ -0,0 +1,14 @@ +clc;
+clear;
+h=6.63*10^-34 //Plancks constant in J-s
+m=9.1*10^-31 //mass in kg
+E=2 //energy in eV
+V_0=20 //height of potential barrier in eV
+alpha=0.3*10^-9 //width of potental barrier in m
+e=1.6*10^-19 //charge in C
+
+//calculation
+Gamma=((sqrt(2*m*(V_0-E)))*1.6*10^-19)/h //in m^-1
+T=(16*E*(V_0-E)*exp(-2*Gamma*alpha))/V_0^2
+mprintf("The tunneling probability is = %1.2f",T)
+//The answer provided in the textbook is wrong.
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