The document outlines the objectives and content of an applied electricity course, covering fundamental concepts in electrical and computer engineering, including circuit theory and instrumentation. Key topics include charge, electric current, resistance, voltage, and various types of circuits. The course aims to equip students with a solid understanding of AC and DC circuits and related principles.

1. GET 201
GET 201
APPLIED ELECTRICITY

2. Course Objective
1. GET 201 Gives students a general introduction to electrical and
computer engineering basics
2. Gives students a background understanding in areas such as Circuit
theory, Field theory and Instrumentation.
3. At the end of the course students should have good understanding
of AC and DC circuits, AC and DC bridges, and E and M Fields.

3. Course Content
1. Charges, Current
2. Electric Fields
3. Magnetic Fields
4. B – H Curve
5. Transducers
6. RL Circuits
7. RC Circuits
8. RLC Circuits
9. AC and DC Bridges

4. ElectrIc CIrcuIt
• An electric circuit is an interconnection of electrical
elements.

5. Electric CircuIt

6. Systems of UNITS
• When taking measurements, we must use
units to quantify values
• We use the International Systems of Units
(SI for short)
GATION & REFLECTION
OF PLANE WAVES
CHAPTER 10
& REFLECTION OF PLANE WAVES
MAGNETIC FIELDS FOR PLANE WAVE
N LOSSY DIELECTRICS – IMPERFECT DIELECTRICS
N LOSSLESS (PERFECT) DIELECTRICS
N FREE SPACE
N CONDUCTORS
HE POYNTING VECTOR

7. Systems of UNITS
Quantity Basic Unit Symbol
Length meter m
Mass kilogram kg
Time second s
Electric current ampere A
Thermodynamic
Temperature
kelvin K
Luminous intensity candela cd

8. The SI PrefIxes
• Prefixes on SI units
allow for easy
relationships between
large and small values

9. Charge
Charge: Is a property of certain elementary particles
of an element (electron and protons). This property
causes these elements behave in a certain way.
Electrons are said to be negatively charged while
protons are positively charged. Electrons are
primarily responsible for the flow of current in
conductors.

10. Charge II
•Charge is a basic SI unit, measured in Coulombs
(C)
•Charge of single electron is 1.602*10-19
C
•One Coulomb is quite large, 6.24*1018
electrons.

11. Charge
•In the lab, one typically sees (pC, nC, or
μC)
•Charge is always multiple of electron
charge
•Charge cannot be created or destroyed,
only transferred.

13. Electric Current
•The movement of charge is called a current
•Historically the moving charges were thought to be
positive
•Thus we always note the direction of the equivalent
positive charges, even if the moving charges are
negative.

14. Electric Current
•Current, i, is measured as charge moved per unit
time through an element.
•Unit is Ampere (A), is one Coulomb/second
dt
dq
i 

15. DC vs. AC
• A current that remains constant with
time is called Direct Current (DC)
• Such current is represented by the capital
I, time varying current uses the
lowercase, i.
• A common source of DC is a battery.
• A current that varies sinusoidally with
time is called Alternating Current (AC)
• Mains power is an example of AC
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16. DirectIon of current
•The sign of the current indicates the direction
in which the charge is moving with reference
to the direction of interest we define.
•We need not use the direction that the charge
moves in as our reference, and often have no
choice in the matter.
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17. DirectIon of Current II
•A positive current through a component is
the same as a negative current flowing in the
opposite direction.
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18. Voltage
•Electrons move when there is a
difference in charge between two
locations.
•This difference is expressed at the
potential difference, or voltage (V).
•It is always expressed with
reference to two locations
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19. Voltage II
•It is equal to the energy needed to
move a unit charge between the
locations.
•Positive charge moving from a
higher potential to a lower yields
energy.
•Moving from negative to positive
requires energy.
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20. Resistance
•Resistance is the term used to describe a
reduction in current flow.
•All conductors has intrinsically have some
resistance built in them
•The unit for resistance is called ohm (Ω)
•The symbol used to depict electric resistance
is shown below;

21. Ohm’s Law

22. Power

23. Energy
•Energy (E) is the capacity to do work
•The unit of energy is Joule (J)

24. CIrcuIt Elements
• Ideal Independent Source: provides a specified voltage
or current that is completely independent of other circuit
variables
• Ideal Independent Voltage Source:

25. CIrcuIt Elements
• Ideal independent current source

26. CIrcuIt SOURCE Elements
• Ideal dependent voltage source
• Ideal dependent current source

27. Dependent Source example
•The circuit shown below is an example of using a
dependent source.
•The source on the right is controlled by the current
passing through element C.
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