Lecture+02+jan10 - Lecture#2 The Electric Field Science...

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Unformatted text preview: Lecture #2 The Electric Field Science Learning Center (SLC) Join a peer-Led Study Group for PHYSICS 240 • Small group of 8 motivated students studying together • Two hour weekly meetings, located in an SLC alcove or central campus classroom • Review material, solve problems, discuss concepts, ask questions, and prepare for exams • Led by trained facilitator who has taken the class successfully, who will guide and encourage group discussions Registration opens for PHYSICS 240: 4 pm Wednesday, Jan 11 online at: www.lsa.umich.edu/slc 9 groups offered for PHYSICS 240 Groups begin meeting: Sunday, Jan 15 Email questions to: [email protected] Last lecture-- Coulomb’s Force Law Coulomb’s Force Law (1784) 2 kinds of charge, force on line between, inverse square law……… With k=1/(4πε o )=8.99x10 9 Nm 2 /C 2 Remember: force is a vector—we need to specify which charge we want to know the force on. Real power of Coulomb’s Law-----The principle of Superposition ... F F F F 41 31 21 1 + + + = 2 2 1 r q q k F = e=1.6 x 10-19 C Question #1...
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This note was uploaded on 02/15/2012 for the course PHYS 240 taught by Professor Winn during the Winter '11 term at University of Michigan.

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Lecture+02+jan10 - Lecture#2 The Electric Field Science...

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