L8_13Apr_posted

L8_13Apr_posted - Housekeeping Physics 6C: Electric...

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1 Physics 6C: Electric Potential II 2 Housekeeping Midterm 1 -- Friday 4/22 ! covers material through HW3 Review session Thursday 4/21 7:00-8:30pm ! PSB 110 (?) I’ve posted last Springs first midterm on eCommons ! material covered looks about right ! exam seems long for a midterm Review problems for Chapters 20, 21 are on MP now ! you can do them anytime up through 6/7 for extra-credit ! extra credit makes up for lost homework and clicker points only 3 Grade weighting example Say you have ! 98% on homework = 196 points ! 80% on clicker = 80 points ! 78% on first midterm = 195 ! 90% on second midterm = 225 Points going into the final: 696 ! Final is worth 700-(195+225) = 280 » if you get an 80% on the final, your final total is 696+224 = 920 » if you get a 95% on the final, your final total is 696+266 = 962 » if you get a 50% on the final, your final total is 696+140 = 836 650 point guarantees at least a C. 4 Work, fields, and potential energy Work done moving from A to B: When a gravitational field or electric field does work: When field is an electric field: These expressions involve - the field - and the object on which work is being done
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5 Example A uniform electric field of 15 N/C between two charged sheets that are 3m apart… Work done on 2 Coulomb charge as it moves from + plate to – plate Work done on 5 Coulomb charge
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This document was uploaded on 05/08/2011.

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L8_13Apr_posted - Housekeeping Physics 6C: Electric...

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