From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 3492/CH3/EX3.10/Ex3_10.sce | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 3492/CH3/EX3.10/Ex3_10.sce (limited to '3492/CH3/EX3.10') 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 -- cgit