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Hello.
I'm Dr Ferri.

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Welcome to the course on linear circuits.

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This course will be taught by

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two different people, myself and Nathan
Parrish.

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I'm a professor and associate chair for,
for the school of

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electrical engineering at Georgia Tech,
and Nathan is a graduate student.

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An overview

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of the course is, well, it's on linear
circuits,

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which is the analysis of

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circuits including resistors,
capacitors,and inductors.

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We're looking at two different sources,
one is direct

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current sources and the other is
alternating current sources.

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And we'll be looking at the time domain
and in the frequency domain.

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The target audience are people with a
scientific or

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technical background, who are not

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necessarily electrical or computer
engineers.

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This course is taught in conjunction with
a class

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that we have at Georgia Tech that is for
non-majors.

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That is, students that are in, that are at

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engineering, but not in electrical
engineering as their primary major.

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Because our course in electrical
engineering goes into a

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little bit more depth than the course for
non-majors.

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So this course would be great for someone
who wants to

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do review or an overview, but not quite as
in depth

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as a major in electrical or computer
engineering would do.

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Background preparation.

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We expect that you have had a first course
in

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calculus, so that you understand how to do
derivatives and integrals.

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That you're familiar with matrices and
linear

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algebra, and you're comfortable with
working with vectors.

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That you've had a background in complex

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numbers, and can work with complex
numbers, and

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that you've had some sort introduction to
circuit elements

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at the level that you, with CNA physics
class.

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The learning outcomes.

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By the time that this course ends, you
should be able to deter-, to

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determine voltages and currents in the
resistive

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network, with single or multiple DC
sources.

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Be able to sketch the transient response
of RC

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and RLC circuits to step changes in the
source voltage.

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Be able to determine steady-state
responses to sinusoidal

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inputs, and this is often called AC
analysis.

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Be able to analyze the frequency of
response of filters,

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and finally be able to analyze the power
of reactive circuits.

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This course is divided up into five
modules.

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Each module builds upon itself, and here
is shown

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a concept map of how the different modules
relate

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to one another.

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The background module just gives you some,
you know, a short

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background information that, which you
might get from a physics class.

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It's just a review.

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And then we start with the more difficult,

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or the main topics starting with resistive
circuits.

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Well with resistive circuits, we have to

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draw some background from the background
module.

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And then the third module is reactive
circuits, where we add capacitors and

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inductors to our circuits and then we
build upon some

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of the analysis methods that we learned
with resistive circuits.

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And in addition, the frequency analysis
module

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leads up to the interesting topic of
filters.

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And we have to build upon our previous
modules for that.

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As we start each of these modules we will
show the

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concept map, we will show the specific
topics within each module, and

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then we will also show what we bring
forward from the previous modules.

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And the reason we do the concept map is we
want to get

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the big picture of this course and how
things relate, to each other.

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Here are some hints in how to succeed in
linear circuits.

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First and foremost, be active, take notes.

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Pretend you're in a regular class, and
you're taking notes.

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You either take notes completely by hand,
or you print out the slides and

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make notes right on the slides.

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Now, the slides that we provide to you are
only

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a help for you, in taking notes, so all of

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the material we cover in the class,
especially our handwritten

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comments on our slides, will not be on
those printed slides.

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It's up to you to, to add in additional
comments on those printed slides.

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So to help you out, we will provide slides

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and cells, as well as a document of
handouts

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of slides for each module.
So there's a PDF of all the slides.

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for given module.

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Next, what we like for you to do when you
take

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these notes is to try to identify and
organize your notes.

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And organize important concepts and
skills.

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The last lesson for each module is called
the

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wrap up, and it's basically a study guide
that says.

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You should be able to do certain things.

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You should be able to solve problems a
certain way.

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You should know certain facts and it lists
these out.

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So make sure you study those before you do
each quiz for each module.

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Next, people learn by testing their
knowledge.

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When they test their knowledge and they
find that they don't know

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something, then that's the time for them
to go back and review.

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We're helping to trigger this by

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giving short quizzes in each lesson.

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So every lesson, every video lesson, has a
quiz in

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there, multiple quiz questions, that are
very basic, very conceptual ideas.

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And if you don't get those cracked then
you've

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missed something.0 Go back and review the
video again.

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We also intermittently provide a pause
button in our lecture.

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And that pause button

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is to tell you really to pause the lesson,
to pause

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your video, and to try answer the question
that was just asked.

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And this is to mimic what a professor does
inside a classroom, when a

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professor says, what do you think will
happen if I do such and such?

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Or what is the answer to this problem?

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And the class has time to stop and think
about it.

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So we want you to do same, the same
things.

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Stop and think whenever we provide this
pause button.

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You should do the homework online.
Do the quiz after every module.

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And that, again, these are ways of testing
your

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knowledge, to make sure that you do
understand it.

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Another thing is to ask and answer
questions in the forum.

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not only asking the questions of other
people, we would like for students

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to have a, to be working together, have a
community of online learners.

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So we want you ask questions, and also try
to answer other people's questions.

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You'll find that you understand things a
lot better if

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you're able to answer and explain things
to other people.

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People also learn by making associations
with prior knowledge.

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We're trying to help this along by
providing the concept

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matter, and in each module, we'll be
telling

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you, these are the concepts that you
learned

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earlier in this class, and this is how

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we're going to be using them in this
module.

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So making associations with prior
knowledge, and

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understanding the big picture of this
course, will

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help you to understand the facts and,

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and problem solving skills that we're
teaching you.

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Also, relate this material to practical
problems that

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you've learned outside of this class, you
know,

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things that you've learned in your work
experience or other personal experience.

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And to help you with this, we have a lot

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of lab demos, which show practical use of
this material.

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As lab demos are an inherent part of this
class, so

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there will be homework problems on there,
and quiz problems as well.

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So we want you to learn them for their own
sake, but

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also to help you identify this, and make
associations of the theoretical

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knowledge that we're giving you with some
real practical knowledge.

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So the policies for the class.

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No direct email to the instructional
staff.

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Rather, we want you to send all questions
and comments to the forum.

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And the forum will be monitored.

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We want only respectful and constructive
comments and questions.

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In addition, going to, go to the forum

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to ask questions, but also to answer
questions.

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You'll find that you'll be able to

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understand things better yourself if you
try to explain it to other people.

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Now this course is being taught in
conjunction with the Georgia Tech course,

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a regular course that we have for credit
for our own students here.

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And those students have a required text
book, and

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they have required labs that are
associated with this class.

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So as a courtesy to the online community,
we'll be providing some of the references.

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For example, I'll provide

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a, a reference to this, the textbook,
which is purely optional for you.

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And also, I will print the labs, I'll post
the

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labs that we have required for our on
campus students.

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It's not required for you to do the labs,

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but I would encourage you, if you're
curious, to

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buy the data acquisition board and do the
labs

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on your own, may help you understand the
material.

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And so I welcome you to this course on
linear circuits, and

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I'll see you in the video lectures online
and also on the forum.