In the drawing above, E = 4.0N/C and d = 1.5m a)Calculate the work done by the e
ID: 1576154 • Letter: I
Question
In the drawing above, E = 4.0N/C and d = 1.5m
a)Calculate the work done by the electric field in moving a +5.0x10 -9C charge from A to B. Be sure to include - sign if your answer is negative. Your answer needs to be in J
b)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. Your answer needs to be in J
c)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
Explanation / Answer
a)
work = WAB = F*AB*costheta = E*q*AB*costheta
WAB = 4*5*10^-9*1.5*cos30 = 2.6*10^-8 J
(b)
potential energy difference UB - UA = WAB = 2.6*10^-8 J
(c)
potential difference VA - VB = -E*d*costheta = -5.2 V