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- From: abond@rvgs.vak12ed.edu (Andrew H. Bond)
- Subject: Re: A "Paradox"
- Message-ID: <1992Nov17.084649.6714@rvgs.vak12ed.edu>
- Organization: Virginia's Public Education Network (Roanoke)
- References: <1992Nov17.014642.2212@dartvax.dartmouth.edu>
- Date: Tue, 17 Nov 92 08:46:49 GMT
- Lines: 24
-
- Benjamin.J.Tilly@dartmouth.edu writes:
- > Here is an interesting problem which I thought of. It is well known
- > that a charged particle moving through a magnetic field does not gain
- > or lose kinetic energy. However it is also well-known that a magnet
- > moving through a magnetic field can gain kinetic energy. But a magnet
- > is a collection of charged particles each of which does not gain
- > kinetic energy so how can this be? I believe that I know the answer but
- > I will just leave this to see if other people come to the same
- > conclusion that I have.
- >
- > Ben Tilly
-
- The symmetry in electromagnetics suggests that electric field and electric
- charge have counterparts in magnetic field and "magnetic
- charge". The only problem with this idea is that there seems to
- be no magnetic charges. That is there are no isolated point
- objects from which magnetic field lines emerge. A magnetic
- field comes from MOVING electric charges! I think that this is
- sufficient to explain your "paradox"
-
- ref. Halliday & Resnick _Fundamentals_of_Physics_3rd_ed._
- Wiley 1988 (See ch. 30)
- --
- Andrew H. Bond, Roanoke Valley Graduate Center
-