Answered: Three equal point charges, each with…

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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Question

Three equal point charges, each with charge 1.35 μC , are placed at the vertices of an equilateral triangle whose sides are of length 0.550 m . What is the electric potential energy UUU of the system? (Take as zero the potential energy of the three charges when they are infinitely far apart.)

U= ? J

Expert Solution

Step 1

Given,

charge $q_{1} = q_{2} = q_{3} = 1.35 μC = 1.35 \times 10^{- 6}$

Since the triangle is equilateral $r_{1} = r_{2} = r_{3} = 0.550 m$

We know that the electric potential energy between two point charges is

$E = k \frac{q_{1} q_{2}}{r}$

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