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## Homework Statement

Positive charge Q is distributed uniformly along the positive

*y*-axis between y=0 and y=a . A negative point charge −q lies on the positive

*x*-axis, a distance x from the origin

Calculate the

*x*-component of the electric field produced by the charge distribution Q at points on the positive

*x*-axis.

Calculate the

*y*-component of the electric field produced by the charge distribution Q at points on the positive

*x*-axis.

## Homework Equations

E = q/4πε

_{0}r

^{2}

r

^{2}= x

^{2}+y

^{2}

## The Attempt at a Solution

So I was able to get the first part of the question relatively easily by using some techniques from the textbook, which resulted in the correct answer:

dE

_{x}= Q/4πε

_{0}x√(x

^{2}+a

^{2})

But when I try to find the y-component, I get the answer:

dE

_{y}= (Q/(8πε

_{0}a))*(1-(x/(√x

^{2}+a

^{2})))

This answer results in the following message from the website:

"Your answer either contains an incorrect numerical multiplier or is missing one."

I need help finding the problem since I don't know where I may have gone wrong.