From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 2534/CH8/EX8.1/Ex8_1.sce   | 30 ++++++++++++++++++++++++++++++
 2534/CH8/EX8.10/Ex8_10.sce | 13 +++++++++++++
 2534/CH8/EX8.11/Ex8_11.sce | 10 ++++++++++
 2534/CH8/EX8.2/Ex8_2.sce   | 22 ++++++++++++++++++++++
 2534/CH8/EX8.3/Ex8_3.sce   | 32 ++++++++++++++++++++++++++++++++
 2534/CH8/EX8.4/Ex8_4.sce   | 37 +++++++++++++++++++++++++++++++++++++
 2534/CH8/EX8.5/Ex8_5.sce   | 11 +++++++++++
 2534/CH8/EX8.6/Ex8_6.sce   | 18 ++++++++++++++++++
 2534/CH8/EX8.7/Ex8_7.sce   | 42 ++++++++++++++++++++++++++++++++++++++++++
 2534/CH8/EX8.8/Ex8_8.sce   | 13 +++++++++++++
 2534/CH8/EX8.9/Ex8_9.sce   | 14 ++++++++++++++
 11 files changed, 242 insertions(+)
 create mode 100755 2534/CH8/EX8.1/Ex8_1.sce
 create mode 100755 2534/CH8/EX8.10/Ex8_10.sce
 create mode 100755 2534/CH8/EX8.11/Ex8_11.sce
 create mode 100755 2534/CH8/EX8.2/Ex8_2.sce
 create mode 100755 2534/CH8/EX8.3/Ex8_3.sce
 create mode 100755 2534/CH8/EX8.4/Ex8_4.sce
 create mode 100755 2534/CH8/EX8.5/Ex8_5.sce
 create mode 100755 2534/CH8/EX8.6/Ex8_6.sce
 create mode 100755 2534/CH8/EX8.7/Ex8_7.sce
 create mode 100755 2534/CH8/EX8.8/Ex8_8.sce
 create mode 100755 2534/CH8/EX8.9/Ex8_9.sce

(limited to '2534/CH8')

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".
-- 
cgit