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Magnitude of the force on this segment of wire ?

  1. Jun 29, 2009 #1
    1. The problem statement, all variables and given/known data
    A segment of wire carries a current of 15 A
    along the x axis from x = −6 m to x = 0 and
    then along the z axis from z = 0 to z = 4.7 m.
    In this region of space, the magnetic field is
    equal to 78 mT in the positive z direction.
    What is the magnitude of the force on this
    segment of wire? Answer in units of N.

    2. Relevant equations

    F= i*l*B

    3. The attempt at a solution

    what i did is that i found F on the x-axis and i found F on the z-axis .. then i squared both of them and took the root as the final answer which is wrong

    where is my mistake
  2. jcsd
  3. Jun 29, 2009 #2


    User Avatar
    Homework Helper

    It's hard to identify your mistake if you don't show your work :wink:
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