initial commit / add all books

42 files changed, 313 insertions, 0 deletions

diff --git a/2045/CH2/EX2.1/Ex2_1.pdf b/2045/CH2/EX2.1/Ex2_1.pdf
new file mode 100755
index 000000000..4f7e10856
--- /dev/null
+++ b/2045/CH2/EX2.1/Ex2_1.pdf
diff --git a/2045/CH2/EX2.1/Ex2_1.sce b/2045/CH2/EX2.1/Ex2_1.sce
new file mode 100755
index 000000000..421264788
--- /dev/null
+++ b/2045/CH2/EX2.1/Ex2_1.sce
@@ -0,0 +1,29 @@
+//pagenumber 99 example 1

+clear

+q=0.01;//centimetre

+sigma1=1;//ohm centimetre inverse

+q1=0.01;//centimetre

+sigm11=0.01;//ohm centimetre inverse

+iratio=(0.0224^2*2.11*20)*3.6^2/((3.11*(4.3^2*10^-6)^2*2.6*20*10^3));

+for q=1:2

+    if q==1 then

+        un=3800;

+        up=1500;

+        q=1.6*10^-19;

+        ni=2.5*10;

+    else

+        q=1.6*10^-19;

+        up=500

+        un=1300;

+        ni=1.5*10

+end

+    

+    b=un/up;

+    sigmai=(un+up)*q*ni;

+end

+disp("ratio of reverse saturation current   =   "+string((iratio)));//correction in the book

+

+

+

+

+

diff --git a/2045/CH2/EX2.11/Ex2_11.pdf b/2045/CH2/EX2.11/Ex2_11.pdf
new file mode 100755
index 000000000..39cbfdca0
--- /dev/null
+++ b/2045/CH2/EX2.11/Ex2_11.pdf
diff --git a/2045/CH2/EX2.11/Ex2_11.sce b/2045/CH2/EX2.11/Ex2_11.sce
new file mode 100755
index 000000000..c26b7d4ae
--- /dev/null
+++ b/2045/CH2/EX2.11/Ex2_11.sce
@@ -0,0 +1,6 @@
+//pagenumber 108 example 11

+clear

+r=250;//ohm

+c=40*10^-6;//farad

+alpha1=180-atand(377*r*c);

+disp("alpha   =   "+string(alpha1)+"degre");

diff --git a/2045/CH2/EX2.12/Ex2_12.pdf b/2045/CH2/EX2.12/Ex2_12.pdf
new file mode 100755
index 000000000..a96230150
--- /dev/null
+++ b/2045/CH2/EX2.12/Ex2_12.pdf
diff --git a/2045/CH2/EX2.12/Ex2_12.sce b/2045/CH2/EX2.12/Ex2_12.sce
new file mode 100755
index 000000000..eed6e5d65
--- /dev/null
+++ b/2045/CH2/EX2.12/Ex2_12.sce
@@ -0,0 +1,11 @@
+//pagenumber 109 example 12

+clear

+i1=0.1;//current in ampere

+vms=40;//rms voltage in volts

+c=40*10^-6;//capacitance in farad

+r1=50;//resistance in ohms

+ripple=0.0001;

+induct=((1.76/c)*sqrt(0.472/ripple));//inductance

+outv=(2*sqrt(2)*vms)/3.14-i1*r1;//output voltage

+disp("inductance   =   "+string(induct)+"henry");//correction in the book

+disp("output voltage   =   "+string(outv)+"volt");

diff --git a/2045/CH2/EX2.14/Ex2_14.pdf b/2045/CH2/EX2.14/Ex2_14.pdf
new file mode 100755
index 000000000..49ef021e8
--- /dev/null
+++ b/2045/CH2/EX2.14/Ex2_14.pdf
diff --git a/2045/CH2/EX2.14/Ex2_14.sce b/2045/CH2/EX2.14/Ex2_14.sce
new file mode 100755
index 000000000..c79009d0d
--- /dev/null
+++ b/2045/CH2/EX2.14/Ex2_14.sce
@@ -0,0 +1,20 @@
+//pagenumber 109 example 14

+clear

+voltag=40;//volt

+i1=0.2;//ampere

+c1=40*10^-6;//farad

+c2=c1;

+induct=2;//henry

+//(1) ripple

+vdc=2*sqrt(2)*voltag/3.14;

+r1=vdc/i1;

+induc1=r1/1130;

+v1=voltag/(3*3.14^3*120^2*4*induct*c1);

+disp("ripple voltage   =   "+string((v1))+"volt");

+//(2) with two filter

+v1=4*voltag/((3*3.14^5)*(16*120^2*induct^2*c1^2));

+disp("ripple voltage including filters   =   "+string((v1))+"volt");//correction in the book

+//(3)ripple voltage

+v1=4*voltag/(5*3.14*1.414*2*3.14*240*240*3.14*induct*c1);

+v1=v1/20;

+disp("ripple voltage   =   "+string((v1))+"volt");

diff --git a/2045/CH2/EX2.15/Ex2_15.pdf b/2045/CH2/EX2.15/Ex2_15.pdf
new file mode 100755
index 000000000..c7d7a0efe
--- /dev/null
+++ b/2045/CH2/EX2.15/Ex2_15.pdf
diff --git a/2045/CH2/EX2.15/Ex2_15.sce b/2045/CH2/EX2.15/Ex2_15.sce
new file mode 100755
index 000000000..cb21cd046
--- /dev/null
+++ b/2045/CH2/EX2.15/Ex2_15.sce
@@ -0,0 +1,37 @@
+//pagenumber 111 example 15

+clear

+voltag=375;//volt

+r1=2000;//ohm

+induct=20;//henry

+c1=16*10^-6;//farad

+r11=100;//ohm

+r=200;//ohm

+//(1) voltage and ripple with load

+disp("voltage and ripple with load");

+r=r+r11+400;

+vdc=((2*sqrt(2)*voltag/3.14))/1.35;

+ripple=r1/(3*sqrt(2)*(377)*induct*2);

+disp("vdc   =   "+string((vdc))+"volt");

+disp("ripple   =   "+string((ripple)));

+//(2) capacitance connected across load

+disp("capacitance connected across load");

+vdc=sqrt(2)*voltag/(1+1/(4*(60)*r1*2*c1));

+ripple=1/(4*sqrt(3)*(60)*r1*2*c1);

+disp("vdc   =   "+string((vdc))+"volt");

+disp("ripple   =   "+string((ripple)));

+//(3) filter containing two inductors and capacitors in parallel

+disp("filter containing two inductors and capacitors in parallel");

+vdc=250;//volt

+ripple=0.83*10^-6/(2*induct*2*c1);//correction in the book

+disp("vdc   =   "+string((vdc))+"volt");

+disp("ripple   =   "+string((ripple)));

+//(4) two filter

+disp("two filter");

+vdc=250;

+ripple=sqrt(2)/(3*16*3.14^2*60^2*induct*c1)^2;//correction in the book

+disp("vdc   =   "+string((vdc))+"volt");

+disp("ripple   =   "+string((ripple)));

+vdc=sqrt(2)*voltag/(1+(4170/(r1*16))+(r/r1));

+ripple=3300/(16^2*2*20*r1);

+disp("vdc   =   "+string((vdc))+"volt");

+disp("ripple   =   "+string((ripple)));

diff --git a/2045/CH2/EX2.16/Ex2_16.pdf b/2045/CH2/EX2.16/Ex2_16.pdf
new file mode 100755
index 000000000..f1f2a740a
--- /dev/null
+++ b/2045/CH2/EX2.16/Ex2_16.pdf
diff --git a/2045/CH2/EX2.16/Ex2_16.sce b/2045/CH2/EX2.16/Ex2_16.sce
new file mode 100755
index 000000000..65baf052a
--- /dev/null
+++ b/2045/CH2/EX2.16/Ex2_16.sce
@@ -0,0 +1,11 @@
+//pagenumber 112 example 16

+clear

+capaci=4;//farad

+induct=20;//henry

+i1=50*10^-3;//ampere

+resist=200;//ohm

+maxvol=300*sqrt(2);

+vdc=maxvol-((4170/capaci)*(i1))-(i1*resist);

+ripple=(3300*i1)/((capaci^2)*(induct)*353);

+disp("output voltage   =   "+string((vdc))+"volt");

+disp("ripple voltage   =   "+string((ripple)));

diff --git a/2045/CH2/EX2.17/Ex2_17.pdf b/2045/CH2/EX2.17/Ex2_17.pdf
new file mode 100755
index 000000000..bf009b291
--- /dev/null
+++ b/2045/CH2/EX2.17/Ex2_17.pdf
diff --git a/2045/CH2/EX2.17/Ex2_17.sce b/2045/CH2/EX2.17/Ex2_17.sce
new file mode 100755
index 000000000..cf4d0d86e
--- /dev/null
+++ b/2045/CH2/EX2.17/Ex2_17.sce
@@ -0,0 +1,15 @@
+//pagenumber 113 example 17

+clear

+voltag=25;//volt

+c1=10*10^-6;//farad

+i1=100*10^-3;//ampere

+ripple=0.001;

+w=754;//radians

+//(1) inductance and resistance

+

+

+r1=voltag/i1;

+induct=40/(sqrt(2)*w^2*(c1));

+disp("inductance of filter   =   "+string((induct))+"henry");//correction in the book

+disp("resistance of filter   =   "+string((r1))+"ohm");

+

diff --git a/2045/CH2/EX2.18/Ex2_18.pdf b/2045/CH2/EX2.18/Ex2_18.pdf
new file mode 100755
index 000000000..b3e80e7fa
--- /dev/null
+++ b/2045/CH2/EX2.18/Ex2_18.pdf
diff --git a/2045/CH2/EX2.18/Ex2_18.sce b/2045/CH2/EX2.18/Ex2_18.sce
new file mode 100755
index 000000000..a6fa4a49e
--- /dev/null
+++ b/2045/CH2/EX2.18/Ex2_18.sce
@@ -0,0 +1,20 @@
+//pagenumber 113 example 18

+clear

+resacu=0.1*10^-12;//ampere

+u=20+273;//kelvin

+voltaf=0.55;//volt

+w=1.38*10^-23;

+q=1.6*10^-19;

+for z=1:2

+    if z==2 then

+        u=100+273;

+        disp("current at 100celsius rise");

+    end

+    voltag=w*u/q;

+    i1=(10^-13)*(exp((voltaf/voltag))-1);

+    if z==2 then

+        i1=(256*10^-13)*((exp(voltaf/voltag)-1));

+    end

+    disp("current   =   "+string((i1))+"ampere");

+end

+

diff --git a/2045/CH2/EX2.19/Ex2_19.pdf b/2045/CH2/EX2.19/Ex2_19.pdf
new file mode 100755
index 000000000..3f192b9f0
--- /dev/null
+++ b/2045/CH2/EX2.19/Ex2_19.pdf
diff --git a/2045/CH2/EX2.19/Ex2_19.sce b/2045/CH2/EX2.19/Ex2_19.sce
new file mode 100755
index 000000000..fd6beaea5
--- /dev/null
+++ b/2045/CH2/EX2.19/Ex2_19.sce
@@ -0,0 +1,11 @@
+//pagenumber 114 example 19

+clear

+na=10*22;//atoms per cubic metre

+nd=1.2*10^21;//donor per cubic metre

+voltag=1.38*10^-23*(273+298)/(1.6*10^-19);//correction in the book

+voltag=0.026;

+ni=1.5*10^16;

+ni=ni^2;

+v1=voltag*log((na*nd)/(ni));

+disp("thermal voltage   =   "+string((voltag))+"volt");

+disp("barrier voltage   =   "+string(abs(v1))+"volt");//correction in the book

diff --git a/2045/CH2/EX2.2/Ex2_2.pdf b/2045/CH2/EX2.2/Ex2_2.pdf
new file mode 100755
index 000000000..8ca445590
--- /dev/null
+++ b/2045/CH2/EX2.2/Ex2_2.pdf
diff --git a/2045/CH2/EX2.2/Ex2_2.sce b/2045/CH2/EX2.2/Ex2_2.sce
new file mode 100755
index 000000000..3c0165ecd
--- /dev/null
+++ b/2045/CH2/EX2.2/Ex2_2.sce
@@ -0,0 +1,11 @@
+//pagenumber 100 example 2

+clear

+sigma1=0.01;//ohm centimetre inverse

+area11=4*10^-3;//metre square

+q=0.01*10^-2;//metre

+un=1300;

+up=500;

+ni=1.5*10^15;//per cubic centimetre

+sigma1=(un+up)*1.6*10^-19*ni;

+iratio=(4*10^-10*0.026*sigma1^2*2.6*2/10^-4)/3.6^2;

+disp("reverse current ratio   =   "+string((iratio)));//correction in the book

diff --git a/2045/CH2/EX2.20/Ex2_20.pdf b/2045/CH2/EX2.20/Ex2_20.pdf
new file mode 100755
index 000000000..18e91ab51
--- /dev/null
+++ b/2045/CH2/EX2.20/Ex2_20.pdf
diff --git a/2045/CH2/EX2.20/Ex2_20.sce b/2045/CH2/EX2.20/Ex2_20.sce
new file mode 100755
index 000000000..052ebf47a
--- /dev/null
+++ b/2045/CH2/EX2.20/Ex2_20.sce
@@ -0,0 +1,6 @@
+//pagenumber 114 example 20

+clear

+i1=2*10^-7;//ampere

+voltag=0.026;//volt

+i=i1*((exp(0.1/voltag)-1));

+disp("current   =   "+string((i))+"ampere");

diff --git a/2045/CH2/EX2.21/Ex2_21.pdf b/2045/CH2/EX2.21/Ex2_21.pdf
new file mode 100755
index 000000000..c6f7faaf2
--- /dev/null
+++ b/2045/CH2/EX2.21/Ex2_21.pdf
diff --git a/2045/CH2/EX2.21/Ex2_21.sce b/2045/CH2/EX2.21/Ex2_21.sce
new file mode 100755
index 000000000..6082624d7
--- /dev/null
+++ b/2045/CH2/EX2.21/Ex2_21.sce
@@ -0,0 +1,11 @@
+//pagenumber 115 example 21

+clear

+resacu=1*10^-6;//ampere

+voltaf=150*10^-3;//volt

+w=8.62*10^-5;

+voltag=0.026;//volt

+u=300;//kelvin

+uw=u*w;

+resist=(uw)/((resacu)*exp(voltaf/voltag));

+disp("resistance at 150mvolt   =   "+string((resist))+"ohm");//correction in the book

+

diff --git a/2045/CH2/EX2.22/Ex2_22.pdf b/2045/CH2/EX2.22/Ex2_22.pdf
new file mode 100755
index 000000000..9d4b140df
--- /dev/null
+++ b/2045/CH2/EX2.22/Ex2_22.pdf
diff --git a/2045/CH2/EX2.22/Ex2_22.sce b/2045/CH2/EX2.22/Ex2_22.sce
new file mode 100755
index 000000000..59f0ef4ec
--- /dev/null
+++ b/2045/CH2/EX2.22/Ex2_22.sce
@@ -0,0 +1,6 @@
+//pagenumber 115 example 22

+clear

+dopfac=1000;

+w=300;//kelvin

+q=0.026*log(dopfac);

+disp("change in barrier   =   "+string((q))+"volt");

diff --git a/2045/CH2/EX2.23/Ex2_23.pdf b/2045/CH2/EX2.23/Ex2_23.pdf
new file mode 100755
index 000000000..cf06f15b8
--- /dev/null
+++ b/2045/CH2/EX2.23/Ex2_23.pdf
diff --git a/2045/CH2/EX2.23/Ex2_23.sce b/2045/CH2/EX2.23/Ex2_23.sce
new file mode 100755
index 000000000..0009f420b
--- /dev/null
+++ b/2045/CH2/EX2.23/Ex2_23.sce
@@ -0,0 +1,20 @@
+//pagenumber 116 example 23

+clear

+area12=1*10^-8;//metre square

+volre1=-1;//reverse voltage

+capac1=5*10^-12;//farad

+volbu1=0.9;//volt

+voltag=0.5;//volt

+i1=10*10^-3;//ampere

+durmin=1*10^-6;//ssecond

+//(1) capacitance

+capac1=capac1*sqrt((volre1-volbu1)/(voltag-volbu1));

+disp("depletion capacitance   =   "+string((capac1))+"farad");

+//(2) capacitance

+capac1=i1*durmin/(0.026);

+

+disp("capacitance   =   "+string((capac1))+"farad");

+

+

+

+

diff --git a/2045/CH2/EX2.24/Ex2_24.pdf b/2045/CH2/EX2.24/Ex2_24.pdf
new file mode 100755
index 000000000..023499d9f
--- /dev/null
+++ b/2045/CH2/EX2.24/Ex2_24.pdf
diff --git a/2045/CH2/EX2.24/Ex2_24.sce b/2045/CH2/EX2.24/Ex2_24.sce
new file mode 100755
index 000000000..bde3e908b
--- /dev/null
+++ b/2045/CH2/EX2.24/Ex2_24.sce
@@ -0,0 +1,20 @@
+//pagenumber 116 example 24

+quantg=4*10^22;//atoms per cubic centimetre

+quants=5*10^22;//atoms per cubic centimetre

+w=2.5*10^13;//per cubic centimetre

+w1=1.5*10^10;//per cubic centimetre

+for q=[quantg quants]

+    na=2*q/(10^8);

+    nd=500*na;

+    if q==quantg then

+        w=w;

+        voltag=0.026*log(na*nd/w^2);

+        disp("potential germanium   =   "+string((voltag))+"volt");

+    end

+    if q==quants then

+        w=w1;

+        voltag=0.026*log(na*nd/w^2);

+        disp("potential silicon   =   "+string((voltag))+"volt");

+    end

+

+end

diff --git a/2045/CH2/EX2.25/Ex2_25.pdf b/2045/CH2/EX2.25/Ex2_25.pdf
new file mode 100755
index 000000000..36370185b
--- /dev/null
+++ b/2045/CH2/EX2.25/Ex2_25.pdf
diff --git a/2045/CH2/EX2.25/Ex2_25.sce b/2045/CH2/EX2.25/Ex2_25.sce
new file mode 100755
index 000000000..79d54054d
--- /dev/null
+++ b/2045/CH2/EX2.25/Ex2_25.sce
@@ -0,0 +1,11 @@
+//pagenumber 117 example 25

+clear

+u=0.05;//metre square per velocity second correction in the book

+un=0.13;//metre square per velocity second

+condun=20;//second per metre conductivity of n region

+condup=1000;//second per metre conductivity of p region

+p=condup/(1.6*10^-19*u);

+no=condun/(1.6*10^-19*un);

+disp("electrons density   =   "+string((no))+"per cubic metre");

+disp("holes density   =   "+string((p))+"per cubic metre");//others to find is not in the book

+

diff --git a/2045/CH2/EX2.3/Ex2_3.pdf b/2045/CH2/EX2.3/Ex2_3.pdf
new file mode 100755
index 000000000..13066cfcd
--- /dev/null
+++ b/2045/CH2/EX2.3/Ex2_3.pdf
diff --git a/2045/CH2/EX2.3/Ex2_3.sce b/2045/CH2/EX2.3/Ex2_3.sce
new file mode 100755
index 000000000..56c09ea9e
--- /dev/null
+++ b/2045/CH2/EX2.3/Ex2_3.sce
@@ -0,0 +1,11 @@
+//pagenumber 100 example 3

+clear

+a=4*10^-4;//metre square

+sigmap=1;

+sigman=0.1;

+de=0.15;

+vtem=26*10^-3;

+i=(a*vtem*((2.11)*(0.224))/((3.22)^(2)))*((1/de*sigman)+(1/de*sigmap));

+disp("reverse saturation current   =   "+string(i)+"ampere");//correction in the book

+

+

diff --git a/2045/CH2/EX2.4/Ex2_4.pdf b/2045/CH2/EX2.4/Ex2_4.pdf
new file mode 100755
index 000000000..19bfafef5
--- /dev/null
+++ b/2045/CH2/EX2.4/Ex2_4.pdf
diff --git a/2045/CH2/EX2.4/Ex2_4.sce b/2045/CH2/EX2.4/Ex2_4.sce
new file mode 100755
index 000000000..06767601a
--- /dev/null
+++ b/2045/CH2/EX2.4/Ex2_4.sce
@@ -0,0 +1,20 @@
+//pagenumber 101 example 4

+clear

+w=0.9;

+voltaf=0.05;//volt

+revcur=10*10^-6;//ampere

+//(1) voltage

+volrev=0.026*(log((-w+1)));//voltage at which the reverse saturation current at saturate

+resacu=((exp(voltaf/0.026)-1)/((exp(-voltaf/0.026)-1)));//reverse saturation current

+disp("voltage at which the reverse saturation current at saturate   =   "+string((volrev))+"volt");

+disp("reverse saturation current   =   "+string((resacu))+"ampere");

+u=0.1;

+for q=1:3

+        reverc=revcur*(exp((u/0.026))-1)

+        disp("reverse saturation current "+string((u))+"   =   "+string((reverc))+"ampere");

+        u=u+0.1;

+end

+

+

+

+

diff --git a/2045/CH2/EX2.6/Ex2_6.pdf b/2045/CH2/EX2.6/Ex2_6.pdf
new file mode 100755
index 000000000..dfe6c5be7
--- /dev/null
+++ b/2045/CH2/EX2.6/Ex2_6.pdf
diff --git a/2045/CH2/EX2.6/Ex2_6.sce b/2045/CH2/EX2.6/Ex2_6.sce
new file mode 100755
index 000000000..0f1a26172
--- /dev/null
+++ b/2045/CH2/EX2.6/Ex2_6.sce
@@ -0,0 +1,11 @@
+//pagenumber 103 example 6

+clear

+a=1*10^-6;//metre square

+w=2*10^-6;//thick centimetre

+re=16;

+eo=8.854*10^-12;

+c=(eo*re*a)/w;

+disp("capacitance   =   "+string(c)+"farad");

+

+

+

diff --git a/2045/CH2/EX2.7/Ex2_7.pdf b/2045/CH2/EX2.7/Ex2_7.pdf
new file mode 100755
index 000000000..ad6c0193d
--- /dev/null
+++ b/2045/CH2/EX2.7/Ex2_7.pdf
diff --git a/2045/CH2/EX2.7/Ex2_7.sce b/2045/CH2/EX2.7/Ex2_7.sce
new file mode 100755
index 000000000..59cbb402e
--- /dev/null
+++ b/2045/CH2/EX2.7/Ex2_7.sce
@@ -0,0 +1,15 @@
+//pagenumber 105 example 7

+volbar=0.2;//barrier voltage for germanium volt

+na=3*10^20;//atoms per metre

+//(1) width of depletion layer at 10 and 0.1 volt

+

+for q=[-10 -0.1 0.1]

+    w=2.42*10^-6*sqrt((0.2-(q)));

+    disp("width of depletion layer at "+string((q))+"   =   "+string((w))+"metre");//for -0.1volt correction in the book

+end

+//(d) capacitance

+for q=[-10 -0.1]

+    capaci=0.05*10^-9/sqrt(0.2-q);

+    disp("capacitance at "+string((q))+"   =   "+string((capaci))+"farad");

+end

+

diff --git a/2045/CH2/EX2.8/Ex2_8.pdf b/2045/CH2/EX2.8/Ex2_8.pdf
new file mode 100755
index 000000000..6f8ae8327
--- /dev/null
+++ b/2045/CH2/EX2.8/Ex2_8.pdf
diff --git a/2045/CH2/EX2.8/Ex2_8.sce b/2045/CH2/EX2.8/Ex2_8.sce
new file mode 100755
index 000000000..93e116e84
--- /dev/null
+++ b/2045/CH2/EX2.8/Ex2_8.sce
@@ -0,0 +1,11 @@
+//pagenumber 104 example 8

+clear

+p=2;//watts

+voltaf=900*10^-3;//volt

+i1=p/voltaf;

+r1=voltaf/i1;

+disp("maximum forward current   =   "+string(i1)+"ampere");

+

+

+disp("forward diode resistance   =   "+string(r1)+"ohm");

+