(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I have attached the image. The question is --

What is the potential energy of a proton at the midpoint of the capacitor?

I know this is an extremely easy problem, but I can't seem to get the formula right...

2. Relevant equations

I tried U = qV, using 1.6*10^-19 * 150V (because it is in the middle). What am I doing wrong? Is this not the right formula?

3. The attempt at a solution

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# Homework Help: HELP! Potential energy of proton in capacitor

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