initial commit / add all books

9 files changed, 100 insertions, 0 deletions

diff --git a/3769/CH26/EX26.1/Ex26_1.sce b/3769/CH26/EX26.1/Ex26_1.sce
new file mode 100644
index 000000000..500386502
--- /dev/null
+++ b/3769/CH26/EX26.1/Ex26_1.sce
@@ -0,0 +1,13 @@
+clear
+//Given
+a=0.47
+ue=0.39                         //m**2/volt sec
+uh=0.19                         //m**2/volt sec
+e=1.6*10**-19
+
+//Calculation
+a1=1/a
+ni=a1/(e*(ue+uh))
+
+//Result
+printf("\n Intrinsic carrier conceentration is %0.1f *10**19 /m**3",ni*10**-19)
diff --git a/3769/CH26/EX26.10/Ex26_10.sce b/3769/CH26/EX26.10/Ex26_10.sce
new file mode 100644
index 000000000..0feefa350
--- /dev/null
+++ b/3769/CH26/EX26.10/Ex26_10.sce
@@ -0,0 +1,13 @@
+clear
+//Given
+ni=1.5*10**16                   ///m**3
+a=5*10**28
+b=10.0**6
+
+//Calculation
+Ne=a/b
+nh=ni**2/Ne
+
+//Result
+printf("\n Number of Electrons is %0.3f  /m**3",Ne)
+printf("\n Number of holes is %0.3f  *10**9 /m**3",nh*10**-9)
diff --git a/3769/CH26/EX26.11/Ex26_11.sce b/3769/CH26/EX26.11/Ex26_11.sce
new file mode 100644
index 000000000..7df3e574e
--- /dev/null
+++ b/3769/CH26/EX26.11/Ex26_11.sce
@@ -0,0 +1,10 @@
+clear
+//Given
+d=4.0*10*-8                //m
+
+//Calculation
+a=2/1.6*10**-19
+E=-a/d
+
+//Result
+printf("\n Electric field is %0.0f  *10**7 V/m",E*10**22)
diff --git a/3769/CH26/EX26.2/Ex26_2.sce b/3769/CH26/EX26.2/Ex26_2.sce
new file mode 100644
index 000000000..c278b8a20
--- /dev/null
+++ b/3769/CH26/EX26.2/Ex26_2.sce
@@ -0,0 +1,12 @@
+clear
+//Given
+a=0.01
+e=1.6*10**-19
+ue=0.39
+
+//Calculation
+a1=1/a
+Nd=a1/(e*ue)
+
+//Result
+printf("\n Donor concentration is %0.1f *10**21 /m**3",Nd*10**-21)
diff --git a/3769/CH26/EX26.3/Ex26_3.sce b/3769/CH26/EX26.3/Ex26_3.sce
new file mode 100644
index 000000000..1be3fadaf
--- /dev/null
+++ b/3769/CH26/EX26.3/Ex26_3.sce
@@ -0,0 +1,12 @@
+clear
+//Given
+ni=2.5*10**19                           ///m**3
+e=1.6*10**19
+ue=0.36                                //m**2/volt sec
+uh=0.17              
+
+//Calculation
+a=ni*e*(ue+uh)
+
+//Result
+printf("\n Conductivity is %0.3f  S/m", a*10**-38)
diff --git a/3769/CH26/EX26.5/Ex26_5.sce b/3769/CH26/EX26.5/Ex26_5.sce
new file mode 100644
index 000000000..e3b74fb01
--- /dev/null
+++ b/3769/CH26/EX26.5/Ex26_5.sce
@@ -0,0 +1,10 @@
+clear
+//Given
+ni=1.5*10**16                      ///m**3
+nh=4.5*10**22                      ///m**3
+
+//Calculation
+ne=ni**2/nh
+
+//Result
+printf("\n ne in the doped semiconductor is %0.3f  *10**9 /m**3",ne*10**-9)
diff --git a/3769/CH26/EX26.6/Ex26_6.sce b/3769/CH26/EX26.6/Ex26_6.sce
new file mode 100644
index 000000000..4142022d6
--- /dev/null
+++ b/3769/CH26/EX26.6/Ex26_6.sce
@@ -0,0 +1,9 @@
+clear
+//Given
+l=5890.0                          //A
+
+//Calculation
+E=12400/l
+
+//Result
+printf("\n Minimum energy is %0.1f  ev",E)
diff --git a/3769/CH26/EX26.8/Ex26_8.sce b/3769/CH26/EX26.8/Ex26_8.sce
new file mode 100644
index 000000000..1f58d0558
--- /dev/null
+++ b/3769/CH26/EX26.8/Ex26_8.sce
@@ -0,0 +1,10 @@
+clear
+//Given
+E=0.65
+a=10**-10
+
+//Calculation
+l=(12400*a)/E
+
+//Result
+printf("\n Maximum wavelength of electromagnetic radiation is %0.1f *10**-6 m",l*10**6)
diff --git a/3769/CH26/EX26.9/Ex26_9.sce b/3769/CH26/EX26.9/Ex26_9.sce
new file mode 100644
index 000000000..9d865510d
--- /dev/null
+++ b/3769/CH26/EX26.9/Ex26_9.sce
@@ -0,0 +1,11 @@
+clear
+//Given
+a=5                 ///ohm/cm
+ue=3900              //cm**2/vs
+e=1.6*10**-19
+
+//Calculation
+Nd=a/(ue*e)
+
+//Result
+printf("\n Number density of donor atom is %0.2f *10**15 /cm**3",Nd*10**-15)