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Potential in a Conducting Rod

  1. Mar 7, 2012 #1
    When an induced emf is created in a conducting rod why is the resulting potential higher at the positive end of the rod?

    Since the electrons accumulate at the negative end of the rod then wouldn't this be the higher potential instead?

    Don't negative charges flow from lower to higher potential?
    Last edited: Mar 7, 2012
  2. jcsd
  3. Mar 8, 2012 #2


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    The potential is usually talked about in conventional way. What you say is correct. But conventionally, positive charge is spied upon. The region having low negative charge is nothing but a region with high positive charge(w.r.t. conductor in this case). The end having high positive charge is considered to be havin the highest potential. If you follow the electrons, vice versa.
  4. Mar 8, 2012 #3
    The magnetic field which is inducing the emf exerts another force and moves the electrons against the will of the electric field. After all

    [itex]F=q(E+v\times B)[/itex]
  5. Mar 8, 2012 #4
    Thanks, I understand now
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