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Electromagnetic waves & influence

  1. Nov 5, 2008 #1
    Why is it that electromagnetic waves, made up of constantly changing electric and magnetic fields are neither affected by electric or magnetic fields?...
  2. jcsd
  3. Nov 5, 2008 #2


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    Staff: Mentor

    It's because Maxwell's equations are linear in the fields [itex]\vec E[/itex] and [itex]\vec B[/itex]. They contain no terms involving products of the fields or their derivatives.
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