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

Imagine that a proton is held on the end of an insulated rod. How much external work is needed to move the proton from a point with a potential of 95 V to a point where it is -54V?

Express your answer in Joules, watch out for the sign of the answer.

2. Relevant equations

3. The attempt at a solution

I thought that you could use U=qV but it's not working- I also don't know what the point charge (q) would be. I chose this equation because you can relate the change in potential to work (U=-W)... Guidance would be great!

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# Homework Help: Work on a proton/Electic Potential

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