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A clear asymmetri in EM

  1. Nov 15, 2007 #1
    If a conductor connects your nose with the computerscreen with electricity going through it (allways in the same direction), the magnetic fieldlines will allways surround the conductor with one direction. Obviously nature prefers one direction more than the other.
    Is there some very important consequenses of this asymmetri, and does it got a name?

    I can more physics and english that it looks like in this post, so dont be shy with terms and other stuff.

    Thank you.
  2. jcsd
  3. Nov 15, 2007 #2
    "Orientability"? Except... doesn't the Lorentz law cancel any consequence?
  4. Nov 15, 2007 #3

    Claude Bile

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    Science Advisor

    So you're wondering why magnetic fields orient themselves via the right-hand rule (as opposed to the left hand rule)?

    The direction of the magnetic field is a mad-made convention, and not one enforced by nature (i.e. we could reverse all our conventions and still be consistent with nature). The effect of the field though (i.e. the resultant forces) retain the symmetry of the problem, the force in the case of a wire for example will always be directed either radially inward or outward.

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