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Homework Help: Are there Electrostatic Fields at infinity?

  1. Jan 31, 2012 #1
    1. The problem statement, all variables and given/known data
    In the region x ≥ 0 there is an electrostatic potential V(x)=xexp(-λx) where λ>0
    What is the electrostatic field at x→∞

    2. Relevant equations

    3. The attempt at a solution
    My understanding is there is no fields at infinity because there is no electrostatic potential?
    Sorry but I am so confused???
  2. jcsd
  3. Jan 31, 2012 #2


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    How are the electric field E and the potential V related?
  4. Jan 31, 2012 #3
    I believe Potential energy is the energy off one charge in relation to another charge. Therefore creating electrostatic fields? help:(
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