Two equal point charges are fixed at and on the – plane

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Electric Force Field and Potential · Electric Force Field and Potential

Problem

Two equal point charges

+Q

are fixed at

(a,0)

and

(0,a)

on the

x

–

y

plane. What is the direction of the net electric field at the origin? (a) Along the line

y=-x

directed towards the fourth quadrant (b) Zero at the origin (c) Along the line

y=x

directed towards the third quadrant (d) Along the line

y=x

directed towards the first quadrant