Answered: Given the electric field lines shown,…

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

Given the electric field lines shown, what can you say
about the two charges?
a) they are the same sign and magnitude
b) they are opposite in sign, but the same magnitude
c) the left charge is positive and larger in magnitude
d) the left charge is negative and smaller in magnitude
d) none of these

In the electric field line diagram shown in the previous problem, what is the direction of the electric
field at point A, which is marked by an asterisk (*)?
a) rightward b) leftward c) toward top of page d) toward bottom of page e) none of these

Expert Solution

Step 1: What can we say about the two charges

$Electric space field space lines space originates space from space positive space charges space and space terminate space onto space negative space charges. So space clearly space after space looking space at space the space diagram space we space can space say space bold left bold space bold charge bold space bold is bold space bold positive bold space bold and bold space bold right bold space bold one bold space bold is bold space bold negative bold. Also the space number space of space field space lines space originating space tells space the space magnitude space of space the space charge. space So space again space from space diagram space we space can space say space that space bold magnitude bold space bold of bold space bold left bold space bold charge bold space bold is bold space bold less bold space bold and bold space bold right bold space bold charge bold space bold is bold space bold more bold. bold Correct bold space bold choice bold space bold is bold space bold left parenthesis bold d bold right parenthesis bold space bold none bold space bold of bold space bold these$

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