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Magnetic Vector Potential

  1. Sep 30, 2004 #1
    How do you get the B field from the magnetic potential?
    I tried converting the curl into matrix format, but the corresponding matrix can't be inverted.
     
  2. jcsd
  3. Sep 30, 2004 #2

    Tide

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    It's just the curl of the vector potential:

    [tex]\vec B = \nabla \times \vec A[/tex]

    I'm not sure what you're tyring to do with it.
     
  4. Sep 30, 2004 #3
    I got it backward. How do you the A field from a B field?
     
  5. Oct 1, 2004 #4

    Tide

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    Oh! Well in that case ... it depends on what problem you're trying to solve. Check with a good E&M book for some discussion on Green's functions. That might help. It's been a while since I worked with that so I'd have to review it myself.
     
  6. Oct 1, 2004 #5

    Dr Transport

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    [tex] \vec{A} = \pm \frac{1}{2} \vec{B} \times \vec{r} [/tex] if memory serves me correctly.....
     
  7. Oct 1, 2004 #6

    Tide

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    Thanks, Dr. T! Sinyud could easily check that by calculating the curl.
     
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