I have a question that I am hoping someone can help me with, and I would like to say thank you to everyone who looks at this and tries to help.(adsbygoogle = window.adsbygoogle || []).push({});

We have a cylinder with uniform charge density of 2*10^-6 C/m^3, with a radius of 0.05m. How do I figure out how much work is required to move a charge of 4*10^-12C from 0.1m to 0.07m (distances from the center of the cylinder).

The answer should be 2.5X * 10^ something (don't know exactly), but I can't figure out how to do this. Someone please help.

Thanks

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# Homework Help: Urgent-Electric Potential Energy question

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