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Homework Help: Magnetic Field due to 2 Currents

  1. Feb 26, 2012 #1
    1. The problem statement, all variables and given/known data

    A current of 4.05 A is located 5.93 cm along the x axis, that is, at the point (5.93,0.00) cm. A current of 4.00 A is located 3.88 cm along the y axis, that is, at the point (0.00,3.88) cm. (These currents flow parallel to the z axis, with a positive current flowing in the + k direction.)

    Find the magnetic field at the origin.

    Enter the x and y components of the field:

    2. Relevant equations

    ampere's law

    3. The attempt at a solution

    i kno i have to use ampere's law, but i'm not sure how to do this with 2 currents

    i attempted to find each current's magnetic field and then added the x and y components of each together

    i drew a diagram but this RH rule stuff goes completely over my head
    not sure if i have to use an angle somewhere or what
     
  2. jcsd
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