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How are Electromagnetic forces created?

  1. Jun 14, 2008 #1
    How are Electromagnetic forces created by a current?
     
  2. jcsd
  3. Jun 14, 2008 #2

    jtbell

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    Staff: Mentor

    The current produces a magnetic field [itex]\vec B[/itex]. If there is a net nonzero electric charge, then it produces an electric field [itex]\vec E[/itex] also. These fields produce magnetic and electric forces on nearby charges: [itex]\vec F = q (\vec E + \vec v \times \vec B)[/itex].
     
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