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Solution: In the figure, point  B is a distance L away from a point ch...

Question

In the figure, point  B is a distance L away from a point charge Q. Point A is a distance 4L away from Q. What is the ratio of the electric field at  A to that at  B, EA/EB?

A) 1/16

B) 1/9

C) 1/4

D) 1/3

E) This cannot be determined