initial commit / add all books

11 files changed, 242 insertions, 0 deletions

diff --git a/2534/CH8/EX8.1/Ex8_1.sce b/2534/CH8/EX8.1/Ex8_1.sce
new file mode 100755
index 000000000..05b79bd47
--- /dev/null
+++ b/2534/CH8/EX8.1/Ex8_1.sce
@@ -0,0 +1,30 @@
+//Ex8_1

+clc

+disp("(a)")

+Vce=0

+Ic=2*10^-3

+Ib=30*10^-6

+Vbe=50*10^-3

+disp("Vce = "+string(Vce)+"V")//collector-emitter voltage

+disp("Ic = "+string(Ic)+"A")//collector current

+disp("Ib = "+string(Ib)+"A")//base current

+disp("Vbe = "+string(Vbe)+"V")//base-emitter voltage

+hfe=Ic/Ib

+disp("hfe = Ic/Ib = "+string(hfe))//current gain in CE amplifier

+hie=Vbe/Ib

+disp("hie = Vbe/Ib = "+string(hie)+"ohm")//input impedance in CE amplifier

+disp("(b)")

+Ib=0

+Vce=1

+Vbe=0.3*10^-3

+Ic=0.1*10^-3

+disp("Vce = "+string(Vce)+"V")//collector-emitter voltage

+disp("Ic = "+string(Ic)+"A")//collector current

+disp("Ib = "+string(Ib)+"A")//base current

+disp("Vbe = "+string(Vbe)+"V")//base-emitter voltage

+hoe=Ic/Vce

+disp("hoe = Ic/Vce = "+string(hoe)+"mho")//output conductance in CE amplifier

+hre=Vbe/Vce

+disp("hre = Vbe/Vce = "+string(hre))//voltage gain in CE amplifier

+

+// note: textbook answers has printing mistake, regaeding hre.

diff --git a/2534/CH8/EX8.10/Ex8_10.sce b/2534/CH8/EX8.10/Ex8_10.sce
new file mode 100755
index 000000000..9b4491d83
--- /dev/null
+++ b/2534/CH8/EX8.10/Ex8_10.sce
@@ -0,0 +1,13 @@
+//Ex8_10

+clc

+Av = -200

+Ri = 10*10^3

+RL = 3*10^3

+Ai = Av*Ri/RL

+disp("Av = "+string(Av))//voltage gain

+disp("Ri = "+string(Ri)+"ohm")//input resistance

+disp("RL = "+string(RL)+"ohm")//load resistance

+disp("Ai = Av*Ri/RL = "+string(Ai))//current gain

+

+// note : there are mis-printring in the textbook for the above problem regading formula and notations.

+//        answer in the textbook for above problem is wrong.

diff --git a/2534/CH8/EX8.11/Ex8_11.sce b/2534/CH8/EX8.11/Ex8_11.sce
new file mode 100755
index 000000000..6c344545e
--- /dev/null
+++ b/2534/CH8/EX8.11/Ex8_11.sce
@@ -0,0 +1,10 @@
+//Ex8_11

+clc

+Av = -250

+Ai = -50

+RL = 12*10^3

+disp("Av = "+string(Av))//voltage gain

+disp("Ai = "+string(Ai))//current gain

+disp("RL = "+string(RL)+"ohm")//load resistance

+Ri = Ai*RL/Av

+disp("Ri = Ai*RL/Av = "+string(Ri)+"ohm")//input resistance

diff --git a/2534/CH8/EX8.2/Ex8_2.sce b/2534/CH8/EX8.2/Ex8_2.sce
new file mode 100755
index 000000000..6edb890f1
--- /dev/null
+++ b/2534/CH8/EX8.2/Ex8_2.sce
@@ -0,0 +1,22 @@
+//Ex8_2

+clc

+RL = 8*10^3

+hie=1.0*10^3

+hre=2.5*10^-4

+hfe=50

+hoe=25*10^-6

+disp("RL = "+string(RL)+"ohm")//load resistance

+//h-parameters for CE transistor amplifier are as follows:

+disp("hie = "+string(hie)+"ohm")//input resistance of CE transistor

+disp("hre = "+string(hre))//voltage gain of CE transistor

+disp("hfe = "+string(hfe))//current gain of CE transistor

+disp("hoe = "+string(hoe)+"mho")//output conductance of CE transistor

+//calculation for current gain:

+Ai=-hfe/(1+(hoe*RL))

+disp("Ai = -hfe/(1+(hoe*RL)) = "+string(Ai))

+disp("Ai = "+string(abs(Ai)))

+//calculation for input resistance:

+Ri = hie+(hre*Ai*RL)

+disp("Ri = hie+(hre*Ai*RL) = "+string(Ri)+"ohm")

+

+//note : answer in the textbook regarding above problem is not accuratly calculated.

diff --git a/2534/CH8/EX8.3/Ex8_3.sce b/2534/CH8/EX8.3/Ex8_3.sce
new file mode 100755
index 000000000..a9c999760
--- /dev/null
+++ b/2534/CH8/EX8.3/Ex8_3.sce
@@ -0,0 +1,32 @@
+//Ex8_3

+clc

+RL = 8*10^3

+Rs= 500

+hie=1.0*10^3

+hre=2.5*10^-4

+hfe=50

+hoe=25*10^-6

+disp("RL = "+string(RL)+"ohm")//load resistance

+disp("Rs = "+string(Rs)+"ohm")//source resistance

+//h-parameters for CE transistor amplifier are as follows:

+disp("hie = "+string(hie)+"ohm")//input resistance of CE transistor

+disp("hre = "+string(hre))//voltage gain of CE transistor

+disp("hfe = "+string(hfe))//current gain of CE transistor

+disp("hoe = "+string(hoe)+"mho")//output conductance of CE transistor

+

+Ai=-hfe/(1+(hoe*RL))

+disp("Ai = -hfe/(1+(hoe*RL)) = "+string(Ai))//calculation for current gain

+

+Ri = hie+(hre*Ai*RL)

+disp("Ri = hie+(hre*Ai*RL) = "+string(Ri)+"ohm")//calculation for input resistance

+

+Ais=(Ai*Rs)/(Ri+Rs)

+disp("Ais = (Ai*Rs)/(Ri+Rs)= "+string(Ais))//current gain with source resistance

+

+Avs = Ai*RL/Ri

+disp("Avs = Ai*RL/Ri = "+string(Avs))//voltage gain with source resistance

+

+//note : in the textbook above problem has given two values for hie BUT no value for hfe ... 

+//       thus assuming hie=50 as hfe =50, as given in the previous example 8_2

+

+//note : answer in the textbook is not accuratly calculated.

diff --git a/2534/CH8/EX8.4/Ex8_4.sce b/2534/CH8/EX8.4/Ex8_4.sce
new file mode 100755
index 000000000..5854a192a
--- /dev/null
+++ b/2534/CH8/EX8.4/Ex8_4.sce
@@ -0,0 +1,37 @@
+//Ex8_4

+clc

+RL=5*10^3

+Rs=1.2*10^3

+hre=2.5*10^-4

+hie=1.1*10^3

+hfe=100

+hoe=25*10^-6

+disp("RL = "+string(RL)+"ohm")//load resistance

+disp("Rs = "+string(Rs)+"ohm")//source resistance

+//h-parameters for CE transistor amplifier are as follows:

+disp("hie = "+string(hie)+"ohm")//input resistance of CE transistor

+disp("hre = "+string(hre))//voltage gain of CE transistor

+disp("hfe = "+string(hfe))//current gain of CE transistor

+disp("hoe = "+string(hoe)+"mho")//output conductance of CE transistor

+//calculation for current gain:

+Ai=-hfe/(1+(hoe*RL))

+disp("Ai = -hfe/(1+(hoe*RL)) = "+string(abs(Ai)))

+//calculation for input resistance:

+Ri = hie+(hre*Ai*RL)

+disp("Ri = hie+(hre*Ai*RL) = "+string(Ri)+"ohm")

+//calculation for voltage gain:

+Av = Ai*RL/Ri

+disp("Av = Ai*RL/Ri = "+string(Av))

+//calculation for output resistance:

+Go=hoe-((hre*hfe)/(hie+Rs))

+Ro = 1/Go

+disp("Ro = 1/Go")

+disp("Go = hoe-((hre*hfe)/(hie+Rs)) = "+string(Go)+"mho")

+disp("Ro = "+string(Ro)+"ohm")

+

+//note : in the textbook, above problem has given two values for "hfe" and no value for "hre"... 

+//        thus assuming value for "hre = 2.5*10^-4" as taken in previous example 8_2

+//        and "hfe=100" 

+

+//note : in text LOAD RESISTANCE is noted as Rc in question, but RL in solution.

+//       I have work with Load Resistance with notification RL.

diff --git a/2534/CH8/EX8.5/Ex8_5.sce b/2534/CH8/EX8.5/Ex8_5.sce
new file mode 100755
index 000000000..c983b66b4
--- /dev/null
+++ b/2534/CH8/EX8.5/Ex8_5.sce
@@ -0,0 +1,11 @@
+//Ex8_5

+clc

+RL = 22*10^3

+hfb=-0.98

+hob=7.6*10^-7

+disp("RL = "+string(RL)+"ohm")//load resistance

+disp("hfb = "+string(hfb))//forward current gain in CB amplifier

+disp("hob = "+string(hob)+"mho")//output conductance in CB amplifier

+Ai = -hfb/(1+(hob*RL))

+disp("Ai = -hfb/(1+(hob*RL)) = "+string(Ai))//current gain

+

diff --git a/2534/CH8/EX8.6/Ex8_6.sce b/2534/CH8/EX8.6/Ex8_6.sce
new file mode 100755
index 000000000..143477fb6
--- /dev/null
+++ b/2534/CH8/EX8.6/Ex8_6.sce
@@ -0,0 +1,18 @@
+//Ex8_6

+clc

+hfb = -0.999

+hib = 50

+hob = 0.82*10^-6

+hrb = 4*10^-6

+RL = 22*10^3

+disp("RL = "+string(RL)+"ohm")//load impedence

+//h-parameters for CB transistor amplifier are as follows:

+disp("hib = "+string(hib)+"ohm")//input resistance of CB transistor

+disp("hrb = "+string(hrb))//voltage gain of CB transistor

+disp("hfb = "+string(hfb))//current gain of CB transistor

+disp("hob = "+string(hob)+"mho")//output conductance of CB transistor

+Av = -(hfb*RL)/((RL*(hib*hob-hfb*hrb))+hib)

+disp("Av = -(hfb*RL)/((RL*(hib*hob-hfb*hrb))+hib) = "+string(Av))//voltage gain

+

+

+//note : answer provided in the textbook is not precised.

diff --git a/2534/CH8/EX8.7/Ex8_7.sce b/2534/CH8/EX8.7/Ex8_7.sce
new file mode 100755
index 000000000..168f5e57b
--- /dev/null
+++ b/2534/CH8/EX8.7/Ex8_7.sce
@@ -0,0 +1,42 @@
+//Ex8_7

+clc

+RL = 1.2*10^3

+//assuming Rs = RL as given in problem

+Rs = RL

+//assuming values for h-parameters

+hie = 1.0*10^3

+hre=2.5*10^-4

+hfe = 50

+hoe = 25*10^-6

+disp("RL = "+string(RL)+"ohm")//load resistance

+disp("Rs = RL = "+string(RL)+"ohm")//source resistance

+//h-parameters for CE transistor amplifier are as follows:

+disp("hie = "+string(hie)+"ohm")//input resistance of CE transistor

+disp("hre = "+string(hre))//voltage gain of CE transistor

+disp("hfe = "+string(hfe))//current gain of CE transistor

+disp("hoe = "+string(hoe)+"mho")//output conductance of CE transistor

+//calculation for current gain:

+Ai=-hfe/(1+(hoe*RL))

+disp("Ai = -hfe/(1+(hoe*RL)) = "+string(Ai))

+//calculation for input impedence:

+Ri = hie+(hre*Ai*RL)

+disp("Ri = hie+(hre*Ai*RL) = "+string(Ri)+"ohm")

+//calculation for voltage gain:

+disp("Av = Ai*RL/Ri")

+Av = Ai*RL/Ri

+disp("   = "+string(Av))

+//calculation for output impedence:

+Ro = 1/((hoe - (hfe*hre)/(hie+Rs)))

+disp("Ro = 1/((hoe - (hfe*hre)/(hie+Rs)))")

+disp("     = "+string(Ro)+"ohm")

+//current gain with source impedence:

+Ais=(Ai*Rs)/(Ri+Rs)

+disp("Ais = (Ai*Rs)/(Ri+Rs)= "+string(Ais))

+//voltage gain with source impedence:

+Avs = Av*Ri/(Ri+Rs)

+disp("Avs = Av*Ri/(Ri+Rs) = "+string(Avs))

+

+

+

+// NOTE : calculation in the textbook for the above problem is wrong.

+//        while calculating Ri author has use "hie = 1.2*10^3" instead of ASSUMED9 value i.e., "hie = 1.0*10^3"   

diff --git a/2534/CH8/EX8.8/Ex8_8.sce b/2534/CH8/EX8.8/Ex8_8.sce
new file mode 100755
index 000000000..a6f022e2b
--- /dev/null
+++ b/2534/CH8/EX8.8/Ex8_8.sce
@@ -0,0 +1,13 @@
+//Ex8_8

+clc

+Ai = -60

+hfe = 100

+hoe = 10*10^-6

+disp("hfe = "+string(hfe))//forward current gain

+disp("hoe = "+string(hoe)+"A/V")//output conductance

+disp("Ai = "+string(Ai))//current gain

+disp("But, ...

+Ai = -hfe/(1+ hoe*RL)")

+RL = -(1/hoe)*(1+(hfe/Ai))

+disp("Thus,...

+RL = -(1/hoe)*(1+(hfe/Ai)) = "+string(RL)+"ohm")//load resistance

diff --git a/2534/CH8/EX8.9/Ex8_9.sce b/2534/CH8/EX8.9/Ex8_9.sce
new file mode 100755
index 000000000..653273f19
--- /dev/null
+++ b/2534/CH8/EX8.9/Ex8_9.sce
@@ -0,0 +1,14 @@
+//Ex8_9

+clc

+Ai = -60

+Ri = 2.0*10^3

+RL = 15*10^3

+disp("Ai = "+string(Ai))//current gain

+disp("Ri = "+string(Ri)+"ohm")//input resistance

+disp("RL = "+string(RL)+"ohm")//load resistance

+Av = Ai*RL/Ri

+disp("Av = Ai*RL/Ri = "+string(Av))//voltage gain

+

+//note : in textbook,

+//       author notify LOAD RESISTANCE as 'Rc' in question BUT 'RL' in solution.

+//       I have work with "load resistance notified as RL".