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Flying airplane, induction

  1. Dec 16, 2014 #1
    1. The problem statement, all variables and given/known data
    Assuming you know general specifications of the airplane such as span of the wings and maximum speed, calculate the voltage that is induced when the airplane is flying horizontally through earth's magnetic field where both the horizontal component and vertical component of earth's magnetic field is known.

    2. Relevant equations
    This is to be written in general form. Since I know the span of the wings, the speed and the magnetic field's strength the formula is

    e = lvB

    3. The attempt at a solution

    I have the formula e = lvB ready. The only thing I have to decide is whether to use the horizontal or the vertical component of earth's magnetic field. Since the plane is flying horizontally, the component in the horizontal direction wouldn't affect the plane. Therefore, it is the vertical component.

    So the solution would be e = lvB with the vertical component. However, I doubt this is correct. Can it really be so easy?
     
    Last edited: Dec 16, 2014
  2. jcsd
  3. Dec 16, 2014 #2

    mfb

    User Avatar
    2016 Award

    Staff: Mentor

    There are two horizontal directions.
    Your answer is still correct, but the argument needs one more detail.
     
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