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Electrical or kinetic energy?

  1. Jun 19, 2007 #1
    If I know the charge on a particle and I know that it has initial speed of zero and I also know that it is passed through a potential difference of 100kV, can I say that its change in kinetic energy is

    deltaE = charge of particle(q) x potential difference(100kV)


    Or is this equation just used for finding electrical energy?
     
  2. jcsd
  3. Jun 19, 2007 #2
    Both. The electrical energy does work on the particle, meaning its kinetic energy increases. So, yeah, it can be used as both (assuming there's only an electro-static potential and no other forces involved).
     
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