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## Homework Statement

Given symmetrically placed rectangular insulators with uniformly charged distributions of equal magnitude as shown in the figures be low, find the net electric field at the origin.

[PLAIN]http://img254.imageshack.us/img254/8684/electricf.jpg [Broken]

In the figure above, at the origin, the net field E

_{net}is

1. aligned with the positive y-axis.

[STRIKE]2. non-zero and is not aligned with either the x- or y-axis.[/STRIKE]

[STRIKE]3. zero and the direction is undefined.[/STRIKE]

4. aligned with the positive x-axis.

5. aligned with the negative x-axis.

6. aligned with the negative y-axis.

2 and 3 were wrong.

## Homework Equations

None?

## The Attempt at a Solution

I think they are asking for the direction of the electric field. Actually, I have no idea what I am supposed to solve for. I know I have to find Enet but how? Thanks in advance!

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