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Electronic charge

  1. Mar 26, 2015 #1
    OK need some help with units. I am trying calculate the energy to surmount the coulomb barrier. the relationship is basic, but I cant remember how the units of e2 (1.440 ev nm) come about. thanks
  2. jcsd
  3. Mar 27, 2015 #2

    Simon Bridge

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    ... they don't - that figure is incorrect.
    It is ##ke^2## that has dimensions of energy-length.

    See http://mypages.iit.edu/~johnsonpo/250310.pdf p1.
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