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Magnetic field

  1. Aug 6, 2009 #1
    1. The problem statement, all variables and given/known data
    Hello: I have the following:
    The component of the magnetic field parallel to a plane of sheet is the same magnitude on both sides, but changed direction by [tex]\frac{1}{2}\pi[/tex] in going through the sheet.

    I am supposed to explain what is going on. So B were to change direction, does that mean that the current is flowing along the z axis? (because B is always perpendicular to the direction of I)?

  2. jcsd
  3. Aug 6, 2009 #2


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    Assume the sheet is in the plane of your computer screen. What is the direction of the z-axis relative to this plane?
  4. Aug 6, 2009 #3
    if the sheet were the computer screen, then z would be into the page if the current were flowing to the left. I was thinking if the sheet were along the y-z plane, and the current were flowing along the y direction, then z would be pointing upwards. Does this mean that we have another field nearby that is changing its direction as it goes through the sheet? Thanks.
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