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Electromagnetic Force Q's

  1. Feb 2, 2012 #1
    First:
    Since photons carry electromagnetic force between charged particles, and the gravitational force is presumably separate (at least at typical energy levels) then is it correct that an object's mass is irrelevant in considering electronic(electromagnetic) attraction/repulsion?
    i.e. an electron and positron would attract with the same energies as would an electron/proton or proton/antiprotron etc.?

    Secondly,
    What are the relationships that describe the strength of electromagnetic forces in terms of distance and charge?
     
  2. jcsd
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