AP1200_Ch5_Electricity-1ChargeForceField-2007

AP1200_Ch5_Electricity-1ChargeForceField-2007 - AP1200 5....

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1 AP1200 AP1200 5. Electricity 5. Electricity Michel A. Van Hove Michel A. Van Hove WARNING: PRINTING THIS DOCUMENT WILL USE MUCH INK AND WILL NOT SHOW ANIMATIONS.
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2 Learning objectives for electrical properties Learning objectives for electrical properties You should become able to: describe the physical principles of electrical currents relate electrical current, potential, resistance and power 8
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3 Further reading and research Further reading and research You will find many learning tools, including Java applets (interactive on-line demonstrations), at: http://www.merlot.org/ at top right, enter search keywords (e.g. optics) http://hyperphysics.phy-astr.gsu.edu/hbase/electric/ecircon.html#c1 contains many useful explanations and illustrations about electricity Consult our lecture notes, and the recommended textbooks More web links are provided in these Powerpoint files 7
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4 Warning: copyright Warning: copyright Most of the images shown here were downloaded from the web, without asking owners/authors: The owners/authors included no ban on use Copyright must still be respected: The images can be used for educational purposes only; we/you may not make money with them 8
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Electricity Electricity Lecture 1 Lecture 1
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6 Electrical properties deals with electrical currents Electrical properties deals with electrical currents Can you imagine modern life without electricity? Think of these uses of electricity: lighting: incandescent bulb to laser and LED motors in home, industry, transportation refrigeration, heating, cooling telecommunications: telegraph to internet electronics automation computing copying See also http://library.thinkquest.org/6064/ 6
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7 Uses of electricity: lighting Uses of electricity: lighting electric street lighting 19 th century laser lighting first electric light bulb - Edison 9
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8 Uses of electricity: Uses of electricity: mechanical power mechanical power Shanghai Maglev electric motor - C.G. Page 1850s 8
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9 Uses of electricity: Uses of electricity: refrigeration, heating refrigeration, heating electric refrigerator underfloor heating 5
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10 Uses of electricity: Uses of electricity: telecommunications telecommunications telegraph telephone internet 6
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11 Uses of electricity: Uses of electricity: electronics electronics radiotelephone radio/television 7
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12 Uses of electricity: Uses of electricity: computers computers Earth Simulator (5120 processors) ~ 2004 ENIAC computer ~1946 A Boeing 777 airplane contains ~ 1000 computers 8
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Nature of electricity Nature of electricity Early observation of electricity Amber (fossilized resin from trees) was often vigorously polished with a soft cloth. When it is rubbed with a cloth, it can attract nearby bits of straw or grain. Latin word for amber: electrum.
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AP1200_Ch5_Electricity-1ChargeForceField-2007 - AP1200 5....

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