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Transcript of Rowan Hall 238A [email protected] September 5, 2006 Networks I for M.E. ECE 09.201 - 2 James K....
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Rowan Hall 238A
http://rowan.jkbeard.com
September 5, 2006
Networks I for M.E.ECE 09.201 - 2
James K. Beard, Ph.D.
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Slide 2
Welcome to Networks I Learning Objectives –
Define circuit elementsMaster Ohm’s Law, Kirchoff’s Laws, etc.Analyze electrical circuitsApply 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
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Slide 3
Learning Aids: Overview 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
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Slide 4
Learning Check #1
List 2 learning objectives of the course: Networks 1
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Slide 5
Learning Aids:
Required Text : Introduction to Electric Circuits 7th Edition Dorf and Svoboda
Websites : 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)
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Slide 6
Cruise course website
Website : http://users.rowan.edu/~jansson/autumn06/Networks1/
index.html
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Slide 7
Learning Check #2
List the 2 learning aids of the course Networks 1 that you think you will find most helpful to you:
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Slide 8
Learning Evaluation
GradesTests (3 @ 20%) – 60%,Assignments (40%)LECTURE:
In-Class LCs, HW and Participation (20%)
LABS: Reports, HW, etc. (20%)
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Slide 9
How do we learn? 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….
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Slide 10
Let’s stand up….
Put down your pencils …. For the name game
NOTE: Very important learning aid is each other
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Slide 11
Learning Check #3
List 3 names of colleagues that you did not know before today
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Slide 12
Chapter 1 – Overview
History of electricity Electric circuits and current flow Systems of units Voltage Power and energy Voltmeters and ammeters Circuit analysis and design
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Slide 13
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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Slide 14
Imagine a World with..
No electricity No electronic devices No medical technology No appliances
Refrigerators Microwaves Water heaters Air conditioning
No traffic controls
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Slide 15
That world would be
Primitive Difficult to survive in A very hard life……
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Slide 16
Learning Check #4
List 2 important electric technologies that have improved the quality of life for human beings on Earth:
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Slide 17
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
http://www.ph.utexas.edu/~ps304/History%20of%20electricity.htm
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Slide 18
Electrical Science Emerges
600 BC Attractive power of E-S materials 1551 AD Electricity and Magnetism defined 1672 Pointed Conductors 1720 Grey’s Planetarium 1746 Atmospheric Electricity discovered 1814 Electrical Spectrum detailed 1821 First Electric Motor
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Slide 19
Electric Technology
1825First Electromagnet 1832First E-M Induction Generator 1837Telegraph 1879First DC Power System 1888First AC Generator 1895X-rays Discovered 1901Radio
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Slide 20
Quotable Quotes
Heavier than air flying machines are impossibleLord Kelvin – Royal Society 1895
There is no likelihood man can ever tap the power of the atomRobert Milliken Nobel Laureate Physics 1923
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Slide 21
Discovery continues
AC Electric Grids - 1900s Fluorescent Lighting - 1930s Computing – 1930s Television, transistors – 1940s Chips – 1960s Personal Computing - 1970s Internet – 1990 21st Century ?
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Slide 22
Learning Check #5
Of the electrical discoveries described in the last 3 slides, which was the most significant in terms of impact on modern human society?
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Slide 23
Electric Circuits & Current Flow
An electric circuit is an interconnection of circuit elements linked together to form a closed path so that electric current may flow continuously
Battery Resistor
i1
Where is ground?
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Slide 24
Hydraulic Analogy
An electric circuit is an interconnection of circuit elements linked together to form a closed path so that electric current may flow continuously
Pump Constriction
Where is 0 psi?
1m
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Slide 25
Electric Circuits & Current Flow
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
i1 i2dt
dqi 21 ii
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Slide 26
Hydraulic Analogy
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
dmm
dt 1 2m m
1m 2m
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Slide 27
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)
What are base units for Energy (J) and Power (W)
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Slide 28
Assignment
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