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Find the Electric Potential Energy of ions leaving a plate given the power and area

  1. Dec 5, 2012 #1
    I need to know how to find the kinetic energy of ions leaving a charged plate. I figure I can find the electric potential energy, but all i know is the power being supplied to the plate and the plate's cross-sectional area. Any ideas? Thanks in advance!
     
  2. jcsd
  3. Dec 6, 2012 #2

    mfb

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    Staff: Mentor

    Re: Find the Electric Potential Energy of ions leaving a plate given the power and ar

    How do ions leave that plate?
    How does the power supply work (what is powered)?
    Electric potential energy relative to what?
     
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