Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 16 - Electric Charge and Electric Field - Questions: 17

Answer

Point A - Down and to the left parallel to the field lines. Point B - Up and to the right, parallel to the field lines. Point C - Net force is zero.

Work Step by Step

At point A, the direction of the net force on a positive test charge is down and to the left, parallel to nearby electric field lines. At point B, the direction of the net force on a positive test charge is up and to the right, again, parallel to nearby electric field lines. At point C, by symmetry the net force on a positive test charge is 0. You can check the spacing of the field lines to determine strength. In order of decreasing field strength, the points are A, B, C.
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