initial commit / add all books

1 files changed, 18 insertions, 0 deletions

diff --git a/2102/CH2/EX2.12/exa_2_12.sce b/2102/CH2/EX2.12/exa_2_12.sce
new file mode 100755
index 000000000..aa63fac3c
--- /dev/null
+++ b/2102/CH2/EX2.12/exa_2_12.sce
@@ -0,0 +1,18 @@
+// Exa 2.12

+clc;

+clear;

+close;

+// Given data

+ni= 1.45*10^10;// in /cm^3

+q=1.6*10^-19;// in C

+miu_n= 1300;// in cm^2/Vs

+density= 5*10^22;// density of silicon atom in /cm^3

+N_D= density/10^12;

+n=N_D;

+// n*p= ni^2

+p= ni^2/n;//in /cm^3

+sigma= q*n*miu_n;// in (Ωcm)^-1

+rho= 1/sigma;// in Ωcm

+disp(rho,"Resistivity of silicon in Ωcm is : ")

+

+// Note: The value of n is putted wrong (5*10^14 at place of 5*10^10) to evaluate the value of sigma. So the answer in the book is wrong .