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EMF on cable moving in magnetic field

  1. Feb 11, 2009 #1
    1. The problem statement, all variables and given/known data

    Our teacher just posted this question online. We have less than an hour to figure it out. Can someone help point me in the right direction.

    Your team has devised an orbiting “drop cable”
    system that creates an induced EMF by moving a cable through a
    magnetic field. In a test, tour team drops a 30.0 km-long cable from the
    space shuttle, orbiting at a speed of 8.00 x 103 m/s. The magnitude of
    the earth’s magnetic field at the shuttle’s location in about 6.50 x 10-5 T.
    a) Find the motional EMF induced between the ends of the cable.
    Assume, and state, what the angle should be between the cable and the
    magnetic field to get the largest EMF. b) If you are to estimate the
    electrical power that can be provided to a satellite, what else would you
    need to know? Assume a reasonable value for any unknown (Check
    with instructor.) and estimate this power.

    2. Relevant equations

    Not sure??? We just start this section today.

    3. The attempt at a solution
     
  2. jcsd
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