net Electric field and electric net force

1. The problem statement, all variables and given/known data
well, I’m solving one question from 12U physics, and my answer don’t match with others.

the question is at attached file. I do not know how to put it in here

Fex = 1.35, Fey = 1.35, and Fnet = 1.91 (45°)
this one make sense, however on next one, which is

"What is the net electric field acting on charge 1"

I think using equation, Fe = qε, and q is 3 x 10-5,
both εx and εy should be 1.35/(3 x 10-5)

however the answer that I’ve match with this says

Fex = εx and the marker says it is correct.

how does people think I should solve this?

2. Relevant equations
Fe = kq1q2/r2 = qε

ε=kq/r2

Attached Images
File Type: jpg 12.jpg (15.9 KB)

http://ift.tt/1ehPSY0

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