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Urgent-Electric Potential Energy question

  1. Oct 1, 2005 #1
    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.

    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.

  2. jcsd
  3. Oct 1, 2005 #2
    can someone please help? i am very screwed if i don't figure this out. thanks.
  4. Oct 1, 2005 #3
    nobody knows?
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