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 --- 3401/CH5/EX5.2/Ex5_2.sce | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100755 3401/CH5/EX5.2/Ex5_2.sce (limited to '3401/CH5/EX5.2/Ex5_2.sce') diff --git a/3401/CH5/EX5.2/Ex5_2.sce b/3401/CH5/EX5.2/Ex5_2.sce new file mode 100755 index 000000000..e96e8a2cb --- /dev/null +++ b/3401/CH5/EX5.2/Ex5_2.sce @@ -0,0 +1,27 @@ +clc + +Na=10**17 //cm**-3 +T=300 //K +k=8.617*10^-5 //eV/K +E=10 //V/cm^2 +e=1.6*10**-19 //C + + +//sigma=e*un*n0=e*un*(Nd-Na) + //if +Nd=2*10**17 //cm**-3 +sigma=8.16//ohm/cm +un=sigma/(e*(Nd-Na)) +disp(un,"un in cm^2/Vs is=") + +//if +Nd=5*10**17 //cm^-3 +sigma=20.8//ohm/cm +un=sigma/(e*(Nd-Na)) +disp(un,"un in cm^2/Vs is=") + +//if +Nd=3.5*10**17 //cm^-3 +sigma=16//ohm/cm +un=sigma/(e*(Nd-Na)) +disp(un,"un in cm^2/Vs is=") -- cgit