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Induce current from inside of a pipe.

  1. Jun 16, 2011 #1
    Hi, I've recently watched prof. Lewin's (brilliant man) lectures on Gauss' law, and I have some questions regarding this and a result from Gauss' law, the Faraday cage effect. It was shown that if one have a charge in the center of a conducting sphere, there will be a electric field outside the sphere, if I understood it right.
    My question is, could it be possible to have the primary side of a transformer inside a long, closed steel pipe and be able to induce a current on the outside of the pipe? Some problems, or rather their implications, I can't understand is, the field created on the inside isn't static and the transformer isn't at the center of the pipe?

    Thank you :)

  2. jcsd
  3. Jun 18, 2011 #2
    If you had an alternating E field it would induce current in the steel pipe.
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