Download Tuesday - James K Beard

Networks I for M.E.
ECE 09.201 - 2
James K. Beard, Ph.D.
Rowan Hall 238A
[email protected]
http://rowan.jkbeard.com
September 5, 2006
Welcome to Networks I
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Learning Objectives –
 Define
circuit elements
 Master Ohm’s Law, Kirchoff’s Laws, etc.
 Analyze electrical circuits
 Apply circuit parameters (v, i, r, p, etc.)
 Analyze DC circuits with passive elements
including: resistance, energy storage (C,L)
 Build/Model circuits using MentorGraphics
and MatLab
September 5, 2006
Networks I for M.E.
Slide 2
Learning Aids: Overview
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Lectures – Monday & Tuesday Rowan 239
Laboratories – Rowan Hall Room 204/6 - 221
One Lab Section – Mondays 3.15-6.00 pm
Syllabus/Text (read ahead – ch. 1/2)
Computer Tools
Learning Checks
Website
Email
September 5, 2006
Networks I for M.E.
Slide 3
Learning Check #1
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List 2 learning objectives of the course:
Networks 1
September 5, 2006
Networks I for M.E.
Slide 4
Learning Aids:
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Required Text :
 Introduction to Electric Circuits
 7th
Edition
 Dorf and Svoboda
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Websites :
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http://users.rowan.edu/~beard/
http://rowan.jkbeard.com (maps to same Rowan server)
http://users.rowan.edu/~jannson/ (Peter Jannson, course owner)
Check your Email regularly (daily)
September 5, 2006
Networks I for M.E.
Slide 5
Cruise course website
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Website :
 http://users.rowan.edu/~jansson/autumn06/Networks1/inde
x.html
September 5, 2006
Networks I for M.E.
Slide 6
Learning Check #2
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List the 2 learning aids of the course
Networks 1 that you think you will find
most helpful to you:
September 5, 2006
Networks I for M.E.
Slide 7
Learning Evaluation
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Grades
(3 @ 20%) – 60%,
 Assignments (40%)
 LECTURE:
 Tests
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In-Class LCs, HW and Participation (20%)
 LABS:
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Reports, HW, etc. (20%)
September 5, 2006
Networks I for M.E.
Slide 8
How do we learn?
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Hearing
Seeing
Reading
Doing
Other?
Do you think you can learn most everyone’s
name (15+) in this room in <10 minutes?
Let’s Experiment….
September 5, 2006
Networks I for M.E.
Slide 9
Let’s stand up….
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Put down your pencils ….
For the name game
NOTE: Very important learning aid is each
other
September 5, 2006
Networks I for M.E.
Slide 10
Learning Check #3
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List 3 names of colleagues that you did
not know before today
September 5, 2006
Networks I for M.E.
Slide 11
Chapter 1 – Overview
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History of electricity
Electric circuits and current flow
Systems of units
Voltage
Power and energy
Voltmeters and ammeters
Circuit analysis and design
September 5, 2006
Networks I for M.E.
Slide 12
Imagine a World with..
No internet
 No cell phones
 No computers
 No television or video games
 No mass communication (radio,
telephone)
 No tall buildings
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September 5, 2006
Networks I for M.E.
Slide 13
Imagine a World with..
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No electricity
No electronic devices
No medical technology
No appliances
 Refrigerators
 Microwaves
 Water heaters
 Air conditioning
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No traffic controls
September 5, 2006
Networks I for M.E.
Slide 14
That world would be
Primitive
 Difficult to survive in
 A very hard life……
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September 5, 2006
Networks I for M.E.
Slide 15
Learning Check #4
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List 2 important electric technologies that
have improved the quality of life for human
beings on Earth:
September 5, 2006
Networks I for M.E.
Slide 16
Electrical Engineers
Transformed Society
Long, long ago in countries far, far away
the journey began…..
 2637 BC – Hoang-Ti’s magnetic chariot
 1110 BC – Tchi-nan magnetic compass
 600 BC – Etruscans control lightning
 250 BC – Flying Cupid in Diana’s temple
 658 AD – Japan’s first magnetic cars
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http://www.ph.utexas.edu/~ps304/History%20of%20electricity.htm
September 5, 2006
Networks I for M.E.
Slide 17
Electrical Science Emerges
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600 BC
1551 AD
1672
1720
1746
1814
1821
September 5, 2006
Attractive power of E-S materials
Electricity and Magnetism defined
Pointed Conductors
Grey’s Planetarium
Atmospheric Electricity discovered
Electrical Spectrum detailed
First Electric Motor
Networks I for M.E.
Slide 18
Electric Technology
1825
 1832
 1837
 1879
 1888
 1895
 1901
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September 5, 2006
First Electromagnet
First E-M Induction Generator
Telegraph
First DC Power System
First AC Generator
X-rays Discovered
Radio
Networks I for M.E.
Slide 19
Quotable Quotes
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Heavier than air flying machines are
impossible
 Lord
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Kelvin – Royal Society 1895
There is no likelihood man can ever tap
the power of the atom
 Robert
September 5, 2006
Milliken Nobel Laureate Physics 1923
Networks I for M.E.
Slide 20
Discovery continues
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AC Electric Grids - 1900s
Fluorescent Lighting - 1930s
Computing – 1930s
Television, transistors – 1940s
Chips – 1960s
Personal Computing - 1970s
Internet – 1990
21st Century ?
September 5, 2006
Networks I for M.E.
Slide 21
Learning Check #5
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Of the electrical discoveries described in
the last 3 slides, which was the most
significant in terms of impact on modern
human society?
September 5, 2006
Networks I for M.E.
Slide 22
Electric Circuits & Current Flow
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An electric circuit is an interconnection of
circuit elements linked together to form a
closed path so that electric current may flow
continuously
i1
Resistor
Battery
Where is ground?
September 5, 2006
Networks I for M.E.
Slide 23
Hydraulic Analogy
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An electric circuit is an interconnection of
circuit elements linked together to form a
closed path so that electric current may flow
continuously
m1
Constriction
Pump
Where is 0 psi?
September 5, 2006
Networks I for M.E.
Slide 24
Electric Circuits & Current Flow
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Current is the time rate of flow of electric
charge (q) past a given point
Use lower case to indicate a time varying
current and upper case to indicate a constant
or direct current
dq
i
dt
September 5, 2006
i1   i2
i1
i2
Networks I for M.E.
Slide 25
Hydraulic Analogy
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Flow rate is the time rate of flow of mass (m)
past a given point
Use lower case to indicate a time varying flow
rate and upper case to indicate a constant
flow rate
dm
m
dt
September 5, 2006
m1  m2
m1
Networks I for M.E.
m2
Slide 26
Units
Systeme International d’Unites
 Base Units (m, kg, s, A, K, mol, cd)
 Derived Units (J, W, C, V, Ω, S, F, Wb, H)
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What are base units for Energy (J) and
Power (W)
September 5, 2006
Networks I for M.E.
Slide 27
Assignment
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Read Dorf & Svoboda Chapter 1
Read Dorf & Svoboda Chapter 2
Get your UNIX logons working and check them
 UNIX
lab 221
 Elvis, a UNIX application server
 Must be done by Monday, September 11
 Get help by e-mail to Mike Ciocco
September 5, 2006
Networks I for M.E.
Slide 28