EE 3 W13 Homework 4 Solution.
Prof. G. Pottie
1. The invention and deployment of the telegraph had a large impact on many
spheres of life in the 19th and 20th centuries. Please provide short answers to the
qu
EE3 INTRODUCTION TO ELECTRICAL ENGINEERING
LABORATORY
MANUAL
UCLA EE3
Professor O. M. Stafsudd
Department of Electrical Engineering
October 2013
Rev. September 2015 (version 1.9)
Acknowledgements
I would like to acknowledge and thank the many people who
Review pp 71-86 in the Course Reader.
Much of semiconductor theory is based on the behavior of gases.
T
F
Doping densities are on the order of 1 atom in 1000.
T
F
Acceptor impurities come from Column V of the Periodic Table.
T
F
A forward-biased PN juncti
1
10V
A
2
1
2
5.45V
Using circuit simplification techniques, find the voltage at A w/respect to ground.
Using Node Voltage Analysis, find the voltage at A w/respect to ground. NOTE: pages 36-38
of the Course Reader describe the Node Voltage Analysis metho
T F Voltage is analogous to pressure in a hydraulic system.
T F Voltage is the result of moving charge against an electric field.
T F Current is a through variable.
T F If there is no current, there is no power.
T F A water tower is analogous to a current
T F Voltage is analogous to pressure in a hydraulic system.
T F Voltage is the result of moving charge against an electric field.
T F Current is a through variable.
T F If there is no current, there is no power.
T F A water tower is analogous to a current
The Answers: Part 2.
Delta Functions
A delta function denoted in the time domain by (t-) means that the function is zero everywhere
except at t=. It has the special property that the area under a delta function is 1 even though it is
infinitely thin so th
The Answers: Part 1.
This document provides information related to questions asked by at least one member of the EE
3 class. Since typically many students have the same concerns, you may find some of the
material of interest. There will be periodic postin
The Answers: Part 4.
Noise Figure
All electrical systems are perturbed by thermal noise. This occurs wherever there is resistance. It
is impossible to simultaneously achieve high amplification, low noise, large gain, high linearity
and high efficiency. Co
EE3: Introduction to Electrical
Engineering
Lecture 9: Research Frontiers
Greg Pottie
[email protected]
+1.310.825.8150
EE3 Prof. Greg Pottie
1
Outline
The design process
From mechanisms to electricity to biology
Smart Grid
Bio-info-nano
1. One lesson from "without Hot Air" is that (check all that apply):
a. It's a fool's errand to try to estimate energy consumption.
b. It is necessary to make the estimate understandable.
c. It is necessary to make the estimate credible.
d. No matter what
Review pp 71-86 in the Course Reader.
Much of semiconductor theory is based on the behavior of gases.
T
F
Doping densities are on the order of 1 atom in 1000.
T
F
Acceptor impurities come from Column V of the Periodic Table.
T
F
A forward-biased PN juncti
EE 3 Homework 6
1. Consider a servomechanism like the example in the course notes. The control
input is proportional to the voltage difference in the potentiometer, which in turn is
proportional to the distance o
EE3 INTRODUCTION TO ELECTRICAL ENGINEERING FALL 2013 PROF. GREG POTTIE
HOMEWORK 1
1. Find the current I through the Resistor R2.
2. Find R, given that the current through R is I=2mA.
EE3 INTRODUCTION TO ELECTRICAL ENGINEERING FALL 2013 PROF. GREG POTTI
H (I) and K-(f)=
Vo(f) = V:(f)H (f)
= G(f)H (f)
1 1 °°
= T(1+j27rf) 26“
—OO
(5)
if (6)
, where for the given system since T = 1, G(f)
same as part a.
Note:
C(fiﬂU):
1
= 1 + j‘27r1 = 1
1
1+j27r2.‘f:2
f the sum, if there's a term 6(0) the sum, it'll’ham a v
EE3 12S
Quiz #2
Name _|_
LAST
FIRST
Student ID _
4
1
3
12V
I
1A
2
THIS IS
ONE NODE
Using any method that you wish, find the current I through the battery.
THIS IS
ONE NODE
When two points in a circuit are connected with a
Wire, they are at the same voltag
Systems Lecture
Going up to 10,000 feet now.
Looking at the inter-relations of subsystems:
how they act when connected.
In particular, we will look at feedback control
systems.
Block Diagram Concepts
Control Signal Voltage
Throttle Angle
Input Voltage
Veh
Match the controller function with the purpose:
_ a. Proportional
1. Determine if system is moving toward or away from the goal
_ b. Derivative
2. Drive the system to zero error
_ c. Integral
3. Determine the system's offset from the goal
The inverted pen
Match the controller function with the purpose:
_ a. Proportional
1. Determine if system is moving toward or away from the goal
3
_ b. Derivative
2. Drive the system to zero error
1
_ c. Integral
3. Determine the system's offset from the goal
2
The invert
ENERGY ENGINEERING
FROM
50,000 FEET
Energy Engineering from 50,000 Feet
l
Results of two studies
l
David J.C. McKay, Sustainable Energy Without the
Hot Air
http:/www.withouthotair.com/
Study subject is England, not USA.
USA probably has bigger problem.
De
A BRIEF INTRODUCTION TO
TELEPHONE COMMUNICATION
Acknowledgements
Prof. Abidi Lecture
The Idea Factory: Bell Labs and the Great Age
of American Innovation (The Penguin Press)
Signals: The Science of Communication
(Scientific American Library)
Prof. E.A. Le
Physics 1A
Review Questions (Content Before Midterm 1)
Question 1.
Which of the following is the best definition of a kinematical constraint:
(a) A kinematical constraint is a natural product of considering Newtons Laws in an inertial frame of
reference.
First Quiz: How to Answer IDs
Quiz (15 mins.) Bring blue book
On the quiz, you will be asked to answer 2 ID terms out of a choice of
4 from the list provided in lecture up through WEDNESDAY of WEEK TWO.
There will be two quizzes of this type in the course
EE3 Spring 2017
Practice Problems 1
4
1. Using your knowledge
of series and parallel
equivalents that you
learned in the prelab,
determine the current I.
2
3
I
12 V
5
6
1
ANS: 2.06 A
12
2. Using your knowledge
of series and parallel
equivalents, determin
EE3 Spring 2017
Practice Problems 2
7
1. The 3 nodes have voltages labeled V1, V2, and
V3. Write the KCL equations for V1 and V3, and
then solve for V1 and V3. NOTE: you do not
need a KCL equation for V2. Why?
V1 node:
5
V1
3
V3 node:
V 1 = 6.6V
V 3 = 8.8
EE3 Spring 2017
Practice Problems 3
2
1.
I2
Use Node Voltage Analysis to find Vx.
Hint: find an expression for I2.
V x = 5.14 V
Vx
6V
3I2
3
EE3 Spring 2017
Practice Problems 3
2. Find the Thvenin Equivalent
circuit looking in through the
two terminals.
6