5 files changed, 73 insertions, 0 deletions
diff --git a/3828/CH11/EX11.1/Ex11_1.sce b/3828/CH11/EX11.1/Ex11_1.sce
new file mode 100644
index 000000000..b345cd221
--- /dev/null
+++ b/3828/CH11/EX11.1/Ex11_1.sce
@@ -0,0 +1,14 @@
+//Chapter 11 : Free Electron Theory Of Metals
+
+clear;
+
+//Variable declaration
+k=1.376*10**-23           //Boltzmann's constant in J/K
+T=300                     //Temperature
+m=9.11*10**-31            //Mass of electron
+
+//Calculations
+v=sqrt((3*k*T)/m)/10**5
+
+//Result
+mprintf("Root Mean Square Velocity v= %1.2f*10**5 m/s",v)
diff --git a/3828/CH11/EX11.2/Ex11_2.sce b/3828/CH11/EX11.2/Ex11_2.sce
new file mode 100644
index 000000000..9f500a378
--- /dev/null
+++ b/3828/CH11/EX11.2/Ex11_2.sce
@@ -0,0 +1,17 @@
+//Chapter 11 : Free Electron Theory Of Metals
+
+clear;
+
+//Variable declaration
+sigma=6.8*10**7        //conductivity
+n=8.5*10**28           //number of electrons
+m=9.1*10**-31          //Mass of electron
+e=1.6*10**-19          //charge on electron
+k=1.38*10**-23         //Boltzmann's constant in J/K
+T=300                  //temperature in K
+
+//Calculations
+lamda=(2*sigma*sqrt(3*m*k*T))/(n*e**2)/10**-9
+
+//Result
+mprintf("Mean free path for electron= %1.1f*10**-9 m",lamda)
diff --git a/3828/CH11/EX11.3/Ex11_3.sce b/3828/CH11/EX11.3/Ex11_3.sce
new file mode 100644
index 000000000..f82611cde
--- /dev/null
+++ b/3828/CH11/EX11.3/Ex11_3.sce
@@ -0,0 +1,15 @@
+//Chapter 11 : Free Electron Theory Of Metals
+
+clear;
+
+//Variable declaration
+rho=1.54*10**-8         //resistivity
+n=5.8*10**28            //electron density
+e=1.602*10**-19         //charge on electron
+m=9.1*10**-31           //Mass of electron
+
+//Calculations
+tau=m/(n*(e**2)*rho)/10**-14
+
+//Result
+mprintf("Relaxation time= %1.2f*10**-14 seconds",tau)
diff --git a/3828/CH11/EX11.4/Ex11_4.sce b/3828/CH11/EX11.4/Ex11_4.sce
new file mode 100644
index 000000000..80eff78a6
--- /dev/null
+++ b/3828/CH11/EX11.4/Ex11_4.sce
@@ -0,0 +1,14 @@
+//Chapter 11 : Free Electron Theory Of Metals
+
+clear;
+
+//Variable declaration
+EF=1.1214*10**-18       //fermi energy in J
+m=9.11*10**-31          //Mass of electron
+h=6.63*10**-34          //planck's constant
+
+//Calculations
+n=((8*m*EF)/(h**2))**(3/2)*(%pi/3)/10**28
+
+//Result
+mprintf("No. of free electrons per unit volume= %1.3f*10**28 electrons per meter**3",n)
diff --git a/3828/CH11/EX11.5/Ex11_5.sce b/3828/CH11/EX11.5/Ex11_5.sce
new file mode 100644
index 000000000..2098f693b
--- /dev/null
+++ b/3828/CH11/EX11.5/Ex11_5.sce
@@ -0,0 +1,13 @@
+//Chapter 11 : Free Electron Theory Of Metals
+
+clear;
+
+//Variable declaration
+fE=0.01                 //probability
+delE=8*10**-20          //ev to J
+
+//Calculations
+T=5797/log(99)
+
+//Result
+disp('K',T,"Temperature=")