Re: Magnets

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jolyon Vater Cox by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk>

A spinning electron does have a magnetic field- the angular momentum of the
electron is a vector quantity i.e. It has direction and thus it does
constitute a movement of charge.
An electron can be considered to be a "ball" of charge ball like a charged
spinning top, which would have NOTICEABLE magnetic field if spun fast
enough -currently impractical.

Magnetism in atoms is due to (a) spin of electron on axis and (b) electron's
orbital motion around the parent atom; in magnetic materials these are
oriented at room temperatures giving rise to a net magnetic field; in most
materials however the magnetic effects are randomised by thermal vibration
and these materials are non-magnetic.

According to Quantum theory, quantum states are limited to two electrons by
Pauli excusion principle, applied to magnetic spin Electrons have two
magnetic spin states +1/2 or -1/2 since the magnetic spin number,ms, is
equal to ½.

Finally, while the above may seem off-topic it is in fact relevant to
physicists working with Tesla coils as it underpins present understanding of
electricity and magnetism.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, September 30, 2002 6:01 AM
Subject: Re: Magnets


> Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<davep-at-quik-dot-com>
>
> > Even static electrons have magnetic field due to the charged particles
> > spinning on their axis (moving electric charge).
>
> Which dos not move the _charge_ (any more than a spinning
> top necessarily moves.)
>
>
> > There is no net effect however because for each electron in an atom
which
> > spins clockwise another must spin anticlockwise (Pauli exclusion
principle)
> > so they line up in pairs
>
> If it happens to be an atom with an even number of
> electrons.  Roughly half the elements (Hydrogen fer one)
> have ODD numbers of electrons...
>
> (and we are getting a bit way from coiling...)
>
> best
> dwp
>
> ...the net of a million lies...
> Vernor Vinge
> There are Many Web Sites which Say Many Things.
> -me
>
>
>
>