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Homework Help: Magnetic field cilinder

  1. Nov 2, 2009 #1
    1. The problem statement, all variables and given/known data
    I have a cylinder with 12 long parallel wires placed at the position of the hour on the clock.
    each wire carries the corresponding hour in amperes. example the wire at 1 o'clock carries 1 A, the one at 2 carries 2 A and so on.
    i need to find the magnetic field at the center of the cylinder.

    2. Relevant equations
    I don't really know where to start.


    3. The attempt at a solution
     

    Attached Files:

  2. jcsd
  3. Nov 3, 2009 #2
    my question really is how do i account for all of the wires?
     
  4. Nov 4, 2009 #3

    Doc Al

    User Avatar

    Staff: Mentor

    Find the magnetic field from each wire, then add them up. Note that the magnetic field is a vector, so direction matters.
     
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