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 --- 3440/CH2/EX2.9/Ex2_9.sce | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 3440/CH2/EX2.9/Ex2_9.sce (limited to '3440/CH2/EX2.9') diff --git a/3440/CH2/EX2.9/Ex2_9.sce b/3440/CH2/EX2.9/Ex2_9.sce new file mode 100644 index 000000000..9dd80b650 --- /dev/null +++ b/3440/CH2/EX2.9/Ex2_9.sce @@ -0,0 +1,15 @@ +clc + +T=300 //K +k=8.617*10^-5 //eV/K +q=1.6*10**-19 //C +qx=4.05 //eV +qVn=0.2 //eV +Nc=2.86*10^19 +a=(qx+qVn)/(k*T) +nth=exp(a)*Nc +disp(nth,"the thermionically emitted electron density for nth at 4.05 in cm^3=") //textbook ans is wrong + +qx=0.6 //eV +nth=exp(qx/(k*T))*Nc +disp(nth,"the thermionically emitted electron density for nth at 0.6 in cm^3=") //textbook ans is wrong -- cgit