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Homework Help: How can the energy at the beginning be zero

  1. Aug 4, 2010 #1
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    conservation of energy

    3. The attempt at a solution
    how can the energy at the beginning be zero. then get accelerated?

    umm proton goes to lower potential and electron goes to higher potential? correct?

    i think that electron gets pulled by the higher potential surface correct?

    can some one explain
  2. jcsd
  3. Aug 4, 2010 #2

    Doc Al

    User Avatar

    Staff: Mentor

    The field between the plates exerts a force on it.

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