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Electromagnetic induction question, includes solenoids

  1. Feb 28, 2012 #1
    1. The problem statement, all variables and given/known data
    This isn't a homework problem but I am very curious.

    How much voltage can a magnetic, about the size of a fist,

    generate by passing through a solenoid with about 3 loops every centimeter

    with being pulled by a tension of 1000 N over a distance of 2 meters.

    2. Relevant equations

    Lenz's law (a force that will slow down the acceleration)
    ε= (-N)(dI/dt)

    3. The attempt at a solution
    I am asking this because I do not know how to solve for dI (give me an average value for a large magnet the size of a fist)

    and I do not know how much time this will take.
  2. jcsd
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