Chapter 9
Linear Transformer
Objective and Overview
The chapter introduces magnetic coupling between coils, whereby a timevarying magnetic field of a current-carrying coil induces a voltage in a nearby coil.
Magnetic coupling is the basis for transformer
American University of Beirut
Department of Electrical and Computer Engineering
EECE 210 - Electric Circuits
Quiz 2
Closed Book - No Programmable Calculators - 90 minutes
April 17, 2015
Name: _
ID:_
Solve the following problems;
Provide your answers on th
Profs. R. Chedid
K. Kabalan
R. Jabr
L. Hamandi
S. Karaki
N. Rishani
AMERICAN UNIVERSITY OF BEIRUT
FACULTY OF ENGINEERING
SPRING TERM 2012-13
& ARCHITECTURE
Name:.
ID:.
April 19, 2013
TEST ID: 1000
(EECE210) ELECTRIC CIRCUITS
CLOSED BOOK (1 HRS)
Programmab
Prof. R. Chedid
FACULTY OF ENGINEERING
R. Jabr
& ARCHITECTURE
L. Hamandi
S. Khaddaj
Name:.
(EECE210) ELECTRIC CIRCUITS
CLOSED BOOK (1 HRS)
SPRING TERM 2011-12
March 23, 2012
Problem 1:
In the circuit shown below, all resistances are in ohms. Determine the
PROF. Y. NASSER
DEPT. OF ELECTRICAL AND COMPUTER ENGINEERING
AMERICAN UNIVERSITY OF BEIRUT
EECE210 Electric Circuits
QUIZ I Fall 2016-2017
NAME: _
ID:
October 10, 2016
TEST ID:
_
INSTRUCTIONS:
THE EXAM IS CLOSED BOOK/CLOSED NOTES.
THE DURATION IS ONE HOUR
EECE 210
Electric Circuits
Ideal Transformer
1
Electric Circuit Analogy
Electric Circuit
Magnetic System
Current
Flux ()
Voltage excitation (emf)
mmf (Ni)
Resistance
Reluctance (mmf/flux)
Conductance
Permeance (flux/mmf)
Conductivity
Permeability
Magneti
EECE 210 Electric Circuits
Quiz 1 Sep 24, 2016
20%
1. The current i(t) through a device in the direction of a
voltage drop v(t) across the device is as shown, where
Im = 2 A and Vm = 1 V. Determine:
(a) The charge that passes through the device for t 0
(4
EECE 210
Final Exam, December 18, 2013
3% (Primal Question)
A. The switch is closed at t = 0, with the capacitor initially charged
to 5 V in the polarity of vC. Derive the expression for vC as a
function of time for t 0.
Solution: The initial value of vC
Homework 12
P11.1.2
The switch in Figure P11.1.2
is moved to position b at t = 0
after being in position a for a
long time. Determine, for t 0:
(a) vc; (b) ic, from initial and
final values as well as from the
v-i relation for the capacitor.
Solution: (a)
Homework 13
P11.1.5
The switch in Figure P11.1.5 is
moved to position b at t = 0 after
being in position a for a long
time. Determine, for t 0: (a) vO;
(b) iO.
Ans.
(a)
v O 40e
10t
i O 12 20e 10t
V, t is in s; (b)
A.
Solution: (a) Just before the switch
Chapter 6 Circuit Equations
P6.1.3
(a) Determine VO in Figure P6.1.3 and the
voltages of the middle nodes, taking the
lower node as reference. (b) Repeat (a)
taking node n as reference.
Solution: (a) The node-voltage equations are:
Node a:
(1/2 + 1/6)Va 1
Chapter 12 Basic responses of Second-Order Circuits
P12.1.1
Determine in Figure P12.1.1
so that the response is critically
damped by applying: (i) the
source absorption theorem, and
(ii) KVL and comparing
coefficients with those of a
prototypical series R
Homework 11
P10.1.2
Determine VO and IS in
Figure P10.1.2.
Solution:
j 10 j 5
j 10
j5
; the
source and resistance are
reflected to the secondary
side as shown. It follows
that VO =
2IS =
j 10
j5
5
5
1 j 3
30 j 10
3 j
10
10
1
30 j 10 3 j
A; IS =
V.
=
1
Prof. R. Chedid FACULTY OF ENGINEERING SPRING TERM 2011-12
R. Jabr & ARCHITECTURE
L. Hamandi
S. Khaddaj
Name: . March 23, 2012
TEST ID: 1000
(EECE210) ELECTRIC CIRCUITS
CLOSED BOOK (1 1/; HRS)
Programmable Calculators are not allowed
Provide your answers
Problem 5
Apply delta-to-Y transformation on the resistors R2, R3, R4.
Get the values of Ra, Rb, Rc. Ra = 40 ohms, Rb = 8 ohms, Rc = 10 ohms.
The circuit becomes:
Which is then reduced to:
Where Req = (16+8)|(40+8)+10+10 = (24|48)+20 = 16+10+10 = 36 ohms
Chapter 9
Linear Transformer
Objective and Overview
The chapter introduces magnetic coupling between coils, whereby a timevarying magnetic field of a current-carrying coil induces a voltage in a nearby coil.
Magnetic coupling is the basis for transformer
Chapter 11 Basic Responses of First-Order Circuits
Objective and Overview
The chapter examines the natural responses of RC and RL circuits, as well as
their responses when connected to dc sources, and formulates a general procedure
for deriving the respon
Chapter 1
Preliminaries to Circuit Analysis
Objective and Overview
The chapter introduces some basic notions on electric circuits before
embarking on circuit analysis in the following chapters.
The chapter begins by explaining what electric circuits are,
Chapter 3
Circuit Equivalence
Objective and Overview
The Chapter introduces the very fundamental concept of circuit equivalence
and applies it in a number of cases.
Circuit equivalence is ubiquitous in circuit analysis because of its usefulness,
although
Chapter 5
Circuit Simplification
Objective and Overview
This Chapter is concerned with various procedures and techniques that
simplify circuit analysis, either by reducing a given circuit to a simpler form or by
following certain methodologies that facili
Chapter 4
Circuit Theorems
Objective and Overview
The Chapter presents some theorems that apply to electric circuits, and which
center primarily around Thevenins theorem.
Thevenins theorem takes circuit equivalence to its extreme, by representing
any LTI
Chapter 8
Sinusoidal Steady State
Objective and Overview
The chapter introduces phasor analysis, a powerful and very useful
methodology that extends to the sinusoidal steady state all the concepts, theorems,
and procedures applied to resistive circuits un
Chapter 10 Ideal Transformers
Objective and Overview
The chapter considers a special case of the linear transformer, namely, the
ideal transformer, which is of considerable practical and theoretical importance.
The chapter begins by highlighting some basi
Chapter 2
Fundamentals of Resistive Circuits
Objective and Overview
The chapter introduces the two ideal circuit elements of dc circuits, namely,
resistors and sources, the two basic connections between circuit elements, namely,
series and parallel connec
Chapter 12 Basic Responses of Second-Order Circuits
Objective and Overview
The chapter extends the discussion of the previous chapter to prototypical,
second-order circuits consisting of a resistor, capacitor and inductor, connected in
series or in parall
Chapter 7
Capacitors, Inductors, and Duality
Objective and Overview
The Chapter considers the fundamental properties of capacitors and
inductors and introduces the very useful concept of duality in electric circuits.
The preceding chapters dealt with the
American University of Beirut
Department of Electrical and Computer Engineering
EECE 2I0 - Electric Circuits
Quiz
1
Closed Book - No Programmable Calculators - 90 minutes
March 6,2015
Name:
5 o LU
rt ot\/
ID:
Solve the following problems;
Provide your ans
Prof. Y. Nasser
American University of Beirut
Department of Electrical and Computer Engineering
EECE 210 Electric Circuits
Homework 1- HW will be collected but not corrected
The MasterCard Foundation
Scholars Program
at the
American University of Beirut
Application for Scholarship and Admission
AY 201718
The MasterCard Foundation Scholars Program at AUB
The Program
The MasterCard Foundation Scholars Program is a partnership b
Problem 1
In the circuit shown below, the op amp operates in the linear mode, Vs2 = 2 V, RT
= 2.4 k, R2 = 2 K, and R3=cfw_2, 6. Determine the output voltage Vo.
Answer
a.
b.
c.
d.
e.
13 Volts
24 Volts
35Volts
46 Volts
None of the above
Solution
Vp is dete
American University of Beirut
Department of Electrical and Computer Engineering
EECE 2L0 - Electric Circuits
Quiz
1
Closed Book - No Programmable Calculators - 90 minutes
TEST ID: I"000
March 4,2014
Name:
SDLUT/ oM
ID:
Solve the following problems;
Provid
American University of Beirut
Faculty of Engineering and Architecture
Department of Electrical and Computer Engineering
EECE 210 Electric Circuits-Spring term 2011
Quiz II Solution
Problem 1
Find VTh with respect to the terminals a-b in the circuit shown