# Homework Help: Electric field at point between two finite charged wires

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1. Aug 14, 2015

### gruba

1. The problem statement, all variables and given/known data
Two parallel charged wires are in vacuum. Width of wires is equal to the distance between them. Calculate electric field in the middle (point A).

2. Relevant equations
Superposition

3. The attempt at a solution
Using superposition, y components on vector E are cancelled. I get that the electric field at point A is
EA=√2 λ/(πε0a)
In my books solution, it is
EA=λ/(2ε0a)
Is my solution correct?
Note: I used integration by angle component.

Thanks for replies.

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2. Aug 14, 2015

### TSny

What direction are you calling y? If the y direction is vertical (perpendicular to the wires), then how do you get that the y-components of E cancel?

However, I do think your answer is correct for the magnitude of the net field at A and that the book solution is incorrect. We would need to see your steps in order to check that your method is correct.