Four particles of charges q1, 92, 93, and q4 are placed on a flat level surface with Cartesian coordinates (2m, 2m), (-1m, 2m), (-1m,-2m), and (-2m, -2m), respectively. Particle charges are: q1 = 2µC, q2 = -1µC, q3 = 1µC, and q2 = -2µC (a) How much potential energy is stored by an external foce to ensemble this four point charge system, assuming that initially particles were at infinite separation from each other? (b) What is the electric potential of this system at the origin? Take electric potential to be zero at infinity. (c) (5pts) If a fifth particle of charge q5 = 4µC were to be brought to the origin from infinity, how much work had to be done by an external agent? y(m)| 92 2| 91 1 2 x(т) 931 -2 94

Four particles of charges q1, 92, 93, and q4 are placed on a flat level surface with Cartesian coordinates (2m, 2m), (-1m, 2m), (-1m,-2m), and (-2m, -2m), respectively. Particle charges are: q1 = 2µC, q2 = -1µC, q3 = 1µC, and q2 = -2µC (a) How much potential energy is stored by an external foce to ensemble this four point charge system, assuming that initially particles were at infinite separation from each other? (b) What is the electric potential of this system at the origin? Take electric potential to be zero at infinity. (c) (5pts) If a fifth particle of charge q5 = 4µC were to be brought to the origin from infinity, how much work had to be done by an external agent? y(m)| 92 2| 91 1 2 x(т) 931 -2 94

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Electric Charges and Fields

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Question

Four particles of charges q1, q2, 93, and q4 are
placed on a flat level surface with Cartesian coordinates (2m, 2m), (-1m,
2m), (-1m,-2m), and (-2m, -2m), respectively. Particle charges are: qı =
2µC, q2 = -1µC, q3 = 1µC, and q2 = -2µC
(a) How much potential energy is stored by an external foce to ensemble
this four point charge system, assuming that initially particles were at
infinite separation from each other?
(b) What is the electric potential of this system at the origin? Take
electric potential to be zero at infinity.
(c) (5pts) If a fifth particle of charge q5 = 4µC were to be brought to the
origin from infinity, how much work had to be done by an external
agent?
y(m)
1:
2
x(т)
931

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