Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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


    User Avatar

    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].
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook