Recent content by mooneyp

  1. M

    Distance between electrons in electron beam?

    I just worked backwards from what you got as your final result of 90000 N/C to get λ, and got 5x10^-8 C/m when, if it is really 1000 e-1/m, it should be 1000 * 1.6x10^-19 C/m. You're right about the potential difference.
  2. M

    Distance between electrons in electron beam?

    Thanks for the help on the distance between electrons, though I think you're confusing the current with linear charge density. I don't really need much help for the relativistic effects.
  3. M

    Distance between electrons in electron beam?

    Homework Statement A beam of 9.5 MeV electrons (gamma = 20) amounting as a current to 0.05 microamperes, is traveling through a vacuum. The transverse dimensions of the beam are less than 1 mm, and there are no positive charges in or near it. (a) In the lab frame, what is approximately the...