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lec01_ddn (1) - PHYS 221 General Physics: Electricity,...

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Unformatted text preview: PHYS 221 General Physics: Electricity, Light and Modern Physics • Physics Department Home page: http://www.physics.purdue.edu/ • Course Home page: http://www.physics.purdue.edu/phys221/ • CHIP Home page: http://chip.physics.purdue.edu/public/221/fall2011/ • Room 144- Undergraduate office • Room 11- Help center http://www.physics.purdue.edu/class/services/HC219221.pdf • Room 290- Physics Library *Register I-clickers by Wednesday on CHIP Lecture 1 Electric Charges & Coulomb’s Law www.ehow.com/how_2180464_ reduce- static-cling.html http://www.diyhappy.com/wp- content/images/Lightning.bmp Electric Charge Electric charge is an intrinsic characteristic of the fundamental particles that make up objects. + Positive Charge Negative Charge ! Electrically neutral: object contains equal amounts of positive and negative charges ! Net charge: imbalance in charge Electric Charge Net charge of a system: algebraic sum of all the charges Law: Conservation of charge The net charge of a closed system never changes Electric Charge Electric charge is quantized •Elementary charge:...
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This note was uploaded on 12/04/2011 for the course PHYS 220 taught by Professor Chang during the Spring '09 term at Purdue.

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lec01_ddn (1) - PHYS 221 General Physics: Electricity,...

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