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Electricity and magnetism

  1. Jul 30, 2009 #1
    does the fact that a moving charge creates a magnetic field, and a moving magnet creates an electric current, imply that the two are related or inverses of each other?




    -Tom
     
  2. jcsd
  3. Jul 30, 2009 #2

    ZapperZ

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    Isn't that what has already been shown in Maxwell equations?

    Zz.
     
  4. Jul 30, 2009 #3

    Well they're not "inverses" of each other but they are the same thing. What you view as an electrostatic phenomena a person moving along relative to you would view as a magnetic phenomena. It's really semantics to say which is which. However, if both of you calculated the result of this phenomena (say a charge stationary relative to you attracting a moving charge towards it) using maxwell's equations you'd both get identical answers. He'd just think it was because of magnetism and you'd think it was because of electrostatics. You'd BOTH be right from your respective reference frames.
     
  5. Jul 30, 2009 #4
    The relativistic Lorentz transformations from the unprimed reference frame to the primed reference frame for electric and magnetic fields are shown in the last four lines in:
    http://pdg.lbl.gov/2002/elecrelarpp.pdf
    Note the symmetry (except for the minus sign) between the E and B field transformations in the column labelled Gaussian units.
     
  6. Jul 30, 2009 #5


    i wouldnt know, Zz. i am not familiar with them.
     
  7. Jul 30, 2009 #6

    ZapperZ

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  8. Jul 30, 2009 #7
    huh. that's cool.
     
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