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: 14


A negative test charge would do just as well.

Work Step by Step

The electric field vector can still be defined as in equation 16-3, the force vector divided by the test charge. Because q is less than zero, the electric field vector points in the opposite direction as the force vector on the negative test charge. The vector equation is consistent.
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