Re: There's work, and then there's work

[Bernard Cleyet <anngeorg@PACBELL.NET>]

Typo.?  correction:

"This is because the currents set up a magnetic field in the galvanometer coil, attached to a
spring, and (the field) interacts with a permanent magnet ."  recast, poorly

The usual galvo. has a moving coil with a spring supplying the restoring force and a fixed
permanent magnet.

bc  not a bi-vector wincer, but an apparatus picker

p.s. mute? point  (I don't think moot is the correct word either.)

p.p.s.  Which, whether used as a conjunction or to introduce a NON-restrictive clause, must
be preceded by a comma.  That, without a comma, introduces restrictive clauses.



Bob LaMontagne wrote:

> David Rutherford wrote:
>
> > Why don't you assume that an equal amount of opposite charge flows in
> > the opposite direction. That would double the total charge and make the
> > energy equal to CV^2, not 1/2 CV^2. If the answer is no, please explain
> > why not (Obviously, I'm rethinking my claim that my theory gives 1/2
> > CV^2 and that 1/2 CV^2 is the correct answer).
>
> A galvanometer would respond to both negative charges flowing in one direction and
> positive in the other with the same direction of swing of the indicator. This is because
> the currents set up a magnetic field in the galvanometer coil which then interacts with a
> permanent magnet attached to a spring. The flow of negative and positive charges in
> opposite directions would set up the same magnetic field direction in the coil. Therefore,
> all possible currents are actually being measured. I can sense the bi-vector people
> wincing as they read this :-)
>
> Also, since the negative electrons are the only feasible current carriers available to
> actually travel through the wires, it's a rather mute point.
>
> Bob at PC