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On 2/21/06, John Mallinckrodt <ajm@csupomona.edu> wrote:
>While it is true that the notion of current often--as when it flows
>in a thin wire--has a strong directional sense to it very much LIKE a
>one dimensional vector, I don't see how one can rigorously treat it
>as a vector.
I am completely baffled by that statement. How can it be "LIKE"
a vector and not *be* a vector?
>Suppose I have a REAL wire with some current flowing in it. I
>challenge anyone to give me an operational procedure to rigorously
>associate a useful "vector current" with a specific position (or
>cross section or whatever) of the wire.
Challenge accepted. Here you go:
http://www.av8n.com/physics/straight-wire.htm