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Ohm's law demo

  1. Aug 29, 2013 #1
    I remember seeing a demo of collisions inside a conductor. It was a long board with nails representing the atom positions (a square lattice arrangement) and you would put a hand full of marbles at the top. The marbles will slide down but since they keep hitting the nails the velocity will be constant.
    Does anyone have a link to a video showing this demo?
  2. jcsd
  3. Sep 2, 2013 #2


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    Try "marble electric circuit model.mpg":
    Last edited by a moderator: Sep 25, 2014
  4. Sep 3, 2013 #3
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