Unknown Charge and Electric Field in a Right Triangle

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The discussion revolves around determining the unknown charge and the magnitude of the electric field in a right triangle setup, where the electric field is directed solely in the -x direction. Participants express confusion about how to approach the problem, emphasizing the need for relevant equations related to electric fields generated by point charges. The clarification that the electric field has no y component suggests a focus on the charge's influence in the horizontal direction only. The conversation highlights the importance of understanding electric field concepts to solve the problem effectively. Overall, the thread seeks guidance on applying the correct physics principles to find the unknown charge and electric field magnitude.
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Homework Statement



A right triangle is shown below. The charge on the right is unknown, but the electric field shown is only in the –x direction.
a. What is the unknown charge?
b. What is the magnitude of the electric field?



Homework Equations





The Attempt at a Solution


I have no idea how to start this problem. I have just been staring at it for 20 minutes. I would really appreciate any help.
 

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You have not posted any relevant equations. I think a good starting point would be looking for an equation for the electric field due to a point charge.

As you have explained the electric field is in the -x direction. Would this mean that there is no y component at the point in question?
 

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