Lecture-5_02-01-11

# Lecture-5_02-01-11 - FIRST HOUR EXAM, 4oclock quiz...

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FIRST HOUR EXAM, 4’oclock quiz Wednesday, 2/16 in Packard Lab 101 SECOND HOUR EXAM 4’clock quiz on Wednesday, 3/30 in Packard Lab 101

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How many hours per week do you spend on the course outside the classroom? Choose an answer closest to the actual time you spent. 1 2 3 4 5 9% 36% 17% 15% 24% 1. 2 2. 4 3. 6 4. 8 5. More than 8
How many hours per week do you think one should spend on the course outside the classroom? Choose an answer closest to the your expectation. 1 2 3 4 5 22% 23% 12% 17% 26% 1. 2 2. 4 3. 6 4. 8 5. More than 8

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Lecture 5 February 1, 2011 Electric Potential
New Concepts: • Electric potential • Electric potential energy • Potential due to a point charge • Potential due to a group of point charges – superposition • Potential due to an electric dipole Additional skills to learn: • Calculating the electric potential from the field • Calculating the field from the potential

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( ) Consider an electric charge moving from an initial position at point A to a final position at point B under the influenc f i x fi x o U U U W F x dx q Electric Potential Energy : e of a known electric field . The force exerted on the charge is: o ff o ii E F q E U F ds q E ds
A B P P V E ds Electric Potential V Units of : J/C known as the "Volt" V

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Example: The electric field in a region of space has the components E y =
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## This note was uploaded on 02/07/2011 for the course PHY 21 taught by Professor Hickman during the Spring '08 term at Lehigh University .

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Lecture-5_02-01-11 - FIRST HOUR EXAM, 4oclock quiz...

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