Re: Tesla Coil RF Transmitter

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: stork <stork@xxxxxxxxxxxxxxxxxxx>

(Terry the original post some how got scrambled up, so I retyped the 
part about electrostatic forces doing mechanical work so it's more readable)

Tesla list wrote:
> Original poster: stork <stork@xxxxxxxxxxxxxxxxxxx>
> Hi Steve,
>
> > Again, if you don't believe in displacement current, you still have 
> > to explain how electrostatic forces can do mechanical work.

It's not difficult.

F = qE             Lorentz Foece Law.  Defines an E field really.

dW = F.l           dl is distance moved related tp work differential,dw.

dW = qE.dl         E.dl is a scalar product.  E has only a single
                   component in the radial direction to q whereas dl
                   has a component in the radial direction also, but
                   may have components in other directions
                   perpendicular to the radial direction.  E has no
                   effect on components perpendicular to r (dot
                   product reduces to zero)so this reduces to:

dW = qEdr

W = q INTG Edr     Integrating gives the total work done by E in the
                   radial direction (longitudinal direction in our
                   experiment) on q.
> If you agree
>
> > that there can be no electrical power without voltage and current 
> > being present at once, then you must admit that there can be no 
> > mechanical work without E x H. So if you are able to move a 
> > non-conducting object using an electrostatic field, displacement 
> > current must exist. That is my argument and I'm still waiting to 
> > see a counter argument.
>
> Of course, I don't agree.  See above. You'll note there is no 
> dispalcement current and work is performed by an E field on q.  In 
> electrostatics there is no need for E X H or magnetic fields to do work.
>
> >  >No one can experimentally measure a magnetic field produced by a
> > >"dispalcement current" in a dielectric field.
> > Explain how the balloon pulls up to the ceiling and sticks to it 
> > after rubbing on the cat, then. If mechanical work was performed, 
> > there must be both E and H fields present, and the only thing that 
> > could have created the H is displacement current since there are no 
> > conductors present to carry conduction current.
>
> Again, no need to invoke E and H fields and displacement currents.
> Coulomb's Law easily suffices here.
> F = (1/4piEo)q1q2/r^2
> This is just a simple example of triboelectrification and attraction 
> of oppositely charged bodies.
> Stork
>
>
> .