gareth wrote:
"Sn!pe" wrote in message
.uk...
gareth wrote:

"Sn!pe" wrote in message
o.uk...

What produces the electric component of the EM field?

The changing magnetic field.

Of course, it should go withour saying that the axis of spin must
be between the N and S poles, and not along the axis of the magnet,
in case of confusion thereto.

I don't understand. Is it not the case that the electric component of
the EM field arises from a voltage difference? How does that voltage
difference arise, please?

I suggest that you go back to an earlier level and think about the dynamo,
alternator and transformer, where a changing magnetic field produces
an electric field, for it is the same principle.

That is not a spinning magnet, that is a changing magnetic field across
a conductor which induces a current in the conductor which produces an
AC voltage in the conductor, or in other words, a generator.

No electormagetic field until you connect the wire with AC voltage
to an antenna which converts the AC voltage to an electromagnetic
wave.


It is unfortunate that matters of electricity are very difficult to
understand

Especially by babbling gas bags.


--
Jim Pennino