initial commit / add all books

3 files changed, 37 insertions, 0 deletions

diff --git a/273/CH17/EX17.1/ex17_1.sce b/273/CH17/EX17.1/ex17_1.sce
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index 000000000..450e75a1a
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+++ b/273/CH17/EX17.1/ex17_1.sce
@@ -0,0 +1,12 @@
+clc;clear;

+//Example 17.1

+//calculation of probability

+

+//given values

+E=.01;//energy difference in eV

+kT=.026;//temperture equivalent at room temp in e

+

+//calculation

+P=1/(1+(%e^(E/kT)));

+

+disp(P,'interatomic spacing  is');

diff --git a/273/CH17/EX17.2/ex17_2.sce b/273/CH17/EX17.2/ex17_2.sce
new file mode 100755
index 000000000..aba910762
--- /dev/null
+++ b/273/CH17/EX17.2/ex17_2.sce
@@ -0,0 +1,13 @@
+clc;clear;

+//Example 17.2

+//calculation of velocity of e

+

+//given values

+e=1.6*10^-19;//charge of e in C

+E=2.1*e;//fermi level in J

+m=9.1*10^-31;//mass of e in kg

+

+//calculation

+v=sqrt(2*E/m);

+

+disp(v,'velocity of e(in m/s)');

diff --git a/273/CH17/EX17.3/ex17_3.sce b/273/CH17/EX17.3/ex17_3.sce
new file mode 100755
index 000000000..f5ef28355
--- /dev/null
+++ b/273/CH17/EX17.3/ex17_3.sce
@@ -0,0 +1,12 @@
+clc;clear;

+//Example 17.3

+//calculation of velocity of fraction of free electrons

+

+//given values

+E=5.5;//fermi level in eV

+kT=.026;//temperture equivalent at room temp in e

+

+//calculation

+f=2*kT/E;

+

+disp(f,'fraction of free electrone\s upto width kT on either side of Ef is');