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Motional EMF

  1. May 28, 2007 #1
    1. The problem statement, all variables and given/known data

    Here is the problem:

    Given a rod of Length L with one end centered at the origin and the other at y=L and given a magnetic field of strength B that points out of the page, what is the graph of the magnitude of the voltage read by a voltmeter as a constant velocity is applied to the rod as it moves across the field?

    2. Relevant equations

    E_y, Induced = -v *B (electric field induced)
    EMF = -v*B*L

    3. The attempt at a solution

    I am having trouble visualizing the specifics of the motion, if it is a constant velocity should i expect a constant slope for the graph of the voltage with traits similiar to X=Y or is it simply a constant value? (which seems unreasonable)
  2. jcsd
  3. May 28, 2007 #2
    Can't you use this equation to derive the answer? ;-).

    "EMF(voltage) = -v*B*L"
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