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Electricity and Magnetism

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Vector Nature of the Electric Field

EANDM-CXBVHP

In the figure below a charge $+Q$ is located a distance $a$ along the $+y$-axis. A charge $-Q$ is located at $-a$ along the $y$-axis. At a point a distance $a$ along the $x$-axis (marked with an X) we want to know the direction of the net electric field created by the two charges.

Which of the red arrows labeled a through h on the figure best describes the net electric field direction? [Hint: consider the effect of these charges on a small positive test charge at X]

Created for Albert.io. Copyright 2016. All rights reserved.

A

a

B

b

C

c

D

d

E

e

F

f

G

g

H

h