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Experimental evidence

  1. Aug 7, 2007 #1
    how does one experimentally check biot-savart's law
  2. jcsd
  3. Aug 7, 2007 #2


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    Maybe you could time travel back to the early 19th century when people actually cared?

    Or you could enroll in a freshman physics laboratory class where no one cares about anything.
  4. Aug 8, 2007 #3
    no isn't it imp...
    well why i asked is it holds only for 'thin' wires and are the wires which we normally use sufficient to test it's validity
  5. Aug 8, 2007 #4


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    Why can't you just measure the magnetic field strength and see if it matches the theoretical calculations at that particular position?

    Besides, like Coulomb's Law, isn't B-S law a phenomenological law historically? So it CAME out of experimental observations in the first place.

  6. Aug 8, 2007 #5

    Meir Achuz

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    The differential form of the B-S law cannot be tested, but can only be inferred from the integral form. The integral form was first written down by Laplace, based on the experiments of B and S with closed circuits. Because of its general nature, it can only be confirmed for specific cases (always passing so far) but not "proven" in general.
  7. Aug 8, 2007 #6
    thanks for that i just wanted to see the experiments behind it ....
    and ofcourse not a 'proof'
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