Re: communicating charges

[Ludwik Kowalski <KowalskiL@MAIL.MONTCLAIR.EDU>]

Yes, it is true. The name given to what takes place is irrelevant.
What is the advantage of saying that it is a wave?
Ludwik Kowalski

David & Shimako Piazza wrote:

>       I need some verification or correction on my thinking about
> charges and electromagnetic waves.  Please comment on the veracity of
> the following:
>
>       Imaging a flat coordinate plane with a positive charge at (0,0)
> and a negative charge at (1,0).   With this arrangement, there is a
> force exerted on the negative charge by the positive charge, I'll call
> F_on_neg.
>
>      If the positive charge is moved from (0,0) up to (0,1), then
> F_on_neg will now point in a new direction.    Of course there was some
> time delay between the motion of the positive charge and the
> corresponding adjustment of the direction of F_on_neg.   In effect, time
> was needed for a signal to be sent from the positive charge to the
> negative charge to communicate the new position.  This signal is an
> electromagnetic wave.
>
> Is what I have said true?
>
> Thanks,
>
> David Piazza
> HS Science Teacher
> The Branson School, CA