Feb02 - PHY 131 University Physics II Lecture 5 Electric...

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John Shumway Department of Physics and Astronomy Arizona State University • Tempe • Arizona http://physics.asu.edu/shumway [email protected] PHY 131: University Physics II Lecture 5: Electric Flux and Gauss’s Law Young and Freedman, Chapter 22.1, 22.2, 22.3 9:00–10:15, Tuesday, February 2, 2010 PSF 173 • Department of Physics Φ E = E · d A d A 1
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[email protected] The fux oF the electric ±eld outward through a closed surFace containing a positive charge is positive. +q ²lux Φ E is positive. 2
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[email protected] The fux oF the electric ±eld through a closed surFace containing a negative charge is negative. -q ²lux Φ E is negative. 3
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[email protected] The fux oF the electric ±eld From through a closed surFace that does not containing a positive charge is zero. +q ²lux Φ E is zero. (Note the all ±eld lines that enter the surFace also leave.) 4
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Electric fux (outward) through a surFace appears to be proportional to the charge contained inside the surFace. +q
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This note was uploaded on 03/10/2010 for the course MATHEMATIC 242 taught by Professor Heckman during the Spring '10 term at Arizona.

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Feb02 - PHY 131 University Physics II Lecture 5 Electric...

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