a.In the drawing below, E = 4.0N/C and d = 1.5m. calculate the potential energy
ID: 1768800 • Letter: A
Question
a.In the drawing below, E = 4.0N/C and d = 1.5m. calculate the potential energy difference between the +5.0x10-9C charge at B and at A. Be sure to include - sign if your answer is negative.
b.calculate the potential difference between A and B. Be sure to include - sign if your answer is negative. Your answer needs to be in V but you don't need to enter the unit in your answer for this question.
drawing: https://learn.kent.edu/bbcswebdav/pid-3656602-dt-content-rid-25891610_1/courses/17403.201480/10744.201460_ImportedContent_20140714032637/HW%20and%20Quiz%20Images/M3HW3%20Q1%20Diag%20a.jpg
Explanation / Answer
W = potential * charge
V = E d = 4.0 * 1.5 = 6 V
W = 5 * 10-9 * 6
= 3 *10-8 J
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enrgy due to pot difference = E d cos 90
= 0
distance d = d cos theta = 1.5 cos 30 = 1.299
V = Ed = 4 * 1.299
= 5.196 v
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