initial commit / add all books

11 files changed, 178 insertions, 0 deletions

diff --git a/3768/CH7/EX7.1/Ex7_1.sce b/3768/CH7/EX7.1/Ex7_1.sce
new file mode 100644
index 000000000..2e3d2e16b
--- /dev/null
+++ b/3768/CH7/EX7.1/Ex7_1.sce
@@ -0,0 +1,19 @@
+//Example number 7.1, Page number 146
+
+clc;clear;
+close;
+
+//Variable declaration
+epsilonr=3.75;       //relative dielectric constant
+T=27;    //temperature(C)
+gama=1/3;     //internal field constant
+rho=2050;     //density(kg/m**3)
+Ma=32;        //atomic weight(amu)
+Na=6.022*10**23;     //avagadro number
+epsilon0=8.85*10**-12;    
+//Calculation
+x=(epsilonr-1)/(epsilonr+2);
+alpha_e=x*Ma*3*epsilon0/(rho*Na);     //electronic polarisability(Fm**2)
+//Result
+printf("electronic polarisability is %.3e Fm^2",alpha_e)
+//answer varies due to rounding off errors
diff --git a/3768/CH7/EX7.10/Ex7_10.sce b/3768/CH7/EX7.10/Ex7_10.sce
new file mode 100644
index 000000000..b217f6ccb
--- /dev/null
+++ b/3768/CH7/EX7.10/Ex7_10.sce
@@ -0,0 +1,15 @@
+//Example number 7.10, Page number 149
+
+clc;clear;
+close;
+
+//Variable declaration
+epsilon0=8.85*10**-12;    
+N=2.7*10**25;   //density of atoms
+R=0.55*10**-10;    //radius(m)
+//Calculation
+alpha_e=4*%pi*epsilon0*R**3;     //polarisability(Fm**2)
+epsilonr=(N*alpha_e/epsilon0)+1;     //relative permittivity
+//Result
+printf("polarisability is %.3e Fm^2",alpha_e)
+printf("\n relative permittivity is %.7f Fm^2",epsilonr)
diff --git a/3768/CH7/EX7.11/Ex7_11.sce b/3768/CH7/EX7.11/Ex7_11.sce
new file mode 100644
index 000000000..0485d0118
--- /dev/null
+++ b/3768/CH7/EX7.11/Ex7_11.sce
@@ -0,0 +1,18 @@
+//Example number 7.11, Page number 150
+
+clc;clear;
+close;
+
+//Variable declaration
+A=180*10**-4;     //area(m**2)
+epsilonr=8;     //relative permittivity
+C=3*10**-6;     //capacitance(F)
+V=10;          //potential(V)
+epsilon0=8.85*10**-12;    
+//Calculation
+E=V*C/(epsilon0*epsilonr);    //field strength(V/m)
+dm=epsilon0*(epsilonr-1)*A*E;     //total dipole moment(coul m)
+//Result
+printf("field strength is %.4e V/m",E)
+printf("\n total dipole moment is %.4e Coul.m",dm)
+//answer in the book is wrong"
diff --git a/3768/CH7/EX7.2/Ex7_2.sce b/3768/CH7/EX7.2/Ex7_2.sce
new file mode 100644
index 000000000..bfd9dbfca
--- /dev/null
+++ b/3768/CH7/EX7.2/Ex7_2.sce
@@ -0,0 +1,16 @@
+//Example number 7.2, Page number 146
+
+clc;clear;
+close;
+
+//Variable declaration
+A=100*10**-4;      //area(m**2)
+epsilon0=8.85*10**-12;    
+d=1*10**-2;     //separation(m)
+V=100;     //potential(V)
+//Calculation
+C=A*epsilon0/d*10**12;     //capacitance(PF)
+Q=(C/10**12)*V;         //charge on plates(C)
+//Result
+printf("capacitance is %.2f pF",C)
+printf("\n charge on plates is %.2e C",Q)
diff --git a/3768/CH7/EX7.3/Ex7_3.sce b/3768/CH7/EX7.3/Ex7_3.sce
new file mode 100644
index 000000000..0ac30db9f
--- /dev/null
+++ b/3768/CH7/EX7.3/Ex7_3.sce
@@ -0,0 +1,14 @@
+//Example number 7.3, Page number 147
+
+clc;clear;
+close;
+
+//Variable declaration
+epsilonr=1.0000684;     //dielectric constant
+N=2.7*10**25;   //number of atoms
+epsilon0=8.85*10**-12;    
+//Calculation
+alpha_e=epsilon0*(epsilonr-1)/N;    //polarisability(Fm**2)
+//Result
+printf("polarisability is %.3e Fm^2",alpha_e)
+//answer varies due to rounding off errors
diff --git a/3768/CH7/EX7.4/Ex7_4.sce b/3768/CH7/EX7.4/Ex7_4.sce
new file mode 100644
index 000000000..1a8cc08c9
--- /dev/null
+++ b/3768/CH7/EX7.4/Ex7_4.sce
@@ -0,0 +1,15 @@
+//Example number 7.4, Page number 147
+
+clc;clear;
+close;
+
+//Variable declaration
+alpha_e=10**-40;      //polarisability(Fm**2)
+N=3*10**28;    //density of atoms
+epsilon0=8.85*10**-12;    
+//Calculation
+x=N*alpha_e/epsilon0;
+epsilonr=(1+(2*x))/(1-x);     //dielectric constant(F/m)
+//Result
+printf("dielectric constant is %.3f F/m",epsilonr)
+//answer in the book is wrong
diff --git a/3768/CH7/EX7.5/Ex7_5.sce b/3768/CH7/EX7.5/Ex7_5.sce
new file mode 100644
index 000000000..dd6f1b5de
--- /dev/null
+++ b/3768/CH7/EX7.5/Ex7_5.sce
@@ -0,0 +1,16 @@
+//Example number 7.5, Page number 147
+
+clc;clear;
+close;
+
+//Variable declaration
+A=650*10**-4;      //area(m**2)
+epsilon0=8.85*10**-12;    
+d=4*10**-2;     //seperation(m)
+Q=2*10**-10;    //charge(C)
+epsilonr=3.5;   //dielectric constant
+//Calculation
+C=A*epsilon0/d;    
+V=Q/C;    //voltage(V)
+//Result
+printf("voltage is %.1f V",V)
diff --git a/3768/CH7/EX7.6/Ex7_6.sce b/3768/CH7/EX7.6/Ex7_6.sce
new file mode 100644
index 000000000..dfcc38273
--- /dev/null
+++ b/3768/CH7/EX7.6/Ex7_6.sce
@@ -0,0 +1,16 @@
+//Example number 7.6, Page number 148
+
+clc;clear;
+close;
+
+//Variable declaration
+A=6.45*10**-4;      //area(m**2)
+epsilon0=8.85*10**-12;    
+d=2*10**-3;     //seperation(m)
+epsilonr=5;   //dielectric constant
+N=6.023*10**23;   //avagadro number
+//Calculation
+alpha_e=epsilon0*(epsilonr-1)/N;    //polarisability(Fm**2)
+//Result
+printf("polarisability is %.3e Fm^2",alpha_e)
+//answer in the book is wrong
diff --git a/3768/CH7/EX7.7/Ex7_7.sce b/3768/CH7/EX7.7/Ex7_7.sce
new file mode 100644
index 000000000..b614da609
--- /dev/null
+++ b/3768/CH7/EX7.7/Ex7_7.sce
@@ -0,0 +1,18 @@
+//Example number 7.7, Page number 148
+
+clc;clear;
+close;
+
+//Variable declaration
+epsilonr=1.0000684;     //dielectric constant
+Na=2.7*10**25;   //number of atoms
+x=1/(9*10**9);   
+E=10**6;   //electric field(V/m)
+e=1.6*10**-19;      //charge(c)
+Z=2;    //atomic number
+//Calculation
+r0=((epsilonr-1)/(4*%pi*Na))**(1/3);     //radius of electron cloud(m)
+X=x*E*r0**3/(Z*e);        //displacement(m)
+//Result
+printf("radius of electron cloud is %.2e m",r0)
+printf("\n displacement is %.4e m",X)
diff --git a/3768/CH7/EX7.8/Ex7_8.sce b/3768/CH7/EX7.8/Ex7_8.sce
new file mode 100644
index 000000000..d4d74e530
--- /dev/null
+++ b/3768/CH7/EX7.8/Ex7_8.sce
@@ -0,0 +1,15 @@
+//Example number 7.8, Page number 149
+
+clc;clear;
+close;
+
+//Variable declaration
+epsilonr=4;       //relative dielectric constant
+Na=2.08*10**23;     //avagadro number
+epsilon0=8.85*10**-12;    
+//Calculation
+x=(epsilonr-1)/(epsilonr+2);
+alpha_e=x*3*epsilon0/Na;     //electronic polarisability(Fm**2)
+//Result
+printf("electronic polarisability is %.3e Fm^2",alpha_e)
+//answer in the book is wrong
diff --git a/3768/CH7/EX7.9/Ex7_9.sce b/3768/CH7/EX7.9/Ex7_9.sce
new file mode 100644
index 000000000..236180aad
--- /dev/null
+++ b/3768/CH7/EX7.9/Ex7_9.sce
@@ -0,0 +1,16 @@
+//Example number 7.9, Page number 149
+
+clc;clear;
+close;
+
+//Variable declaration
+C=4*10**-6;    //capacitance(F)
+epsilonr=200;       //relative dielectric constant
+V=2000;       //voltage(V)
+//Calculation
+C0=C/epsilonr;    //energy in condenser(F)
+E=C0*V/2;      //energy in dielectric(J)
+//Result
+printf("energy in condenser is %.e F",C0)
+printf("\n energy in dielectric is %.1e J",E)
+//answer in the book is wrong