03_03_Point_Potential_3

# 03_03_Point_Potential_3 - Today 3/3 o e e e e Read Ch 19.4...

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Today 3/3 o Read Ch 19.4 e Practice exam posted e Energy of Assembly e Calculating Velocities e HW: “Charge Assembly 2” Due Thursday e Lab: “Mapping Equipotential Lines” (get E field lines from these)

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“Potential Energy Difference” and “Potential Difference” Potential Energy Difference PE A,B is the change in PE the particular charge feels when it is moved from one location to another. This is also the Work required to move the charge. Potential Difference V A,B is the change in PE a positive 1C charge would feel if it were moved from one location to another.
Calculating V A,B r kQ V A , = Q is the “source charge.” A is a location (field point) near the source charge. r is the distance from the source charge to point field point. V A,B = V ,B - V ,A A B Q V A,B is negative!

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More than one source What is the potential difference V AB ? All distances are 5cm.
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03_03_Point_Potential_3 - Today 3/3 o e e e e Read Ch 19.4...

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