Re: Is there an attraction force between two Tesla Coils?
- Hi, I believe the most or all of the wireless transmitted force between two T.C.s are due tue capacitive coupling or electrostatic induction and nothing magnetic. a Research test has been done to show that in some paper as well.
--- In firstname.lastname@example.org, "Harvey D Norris" <harvich@...> wrote:
> --- In email@example.com, "Saber" <leviterande@> wrote:
> > Hi, everyone Im wondering something about Tesla coils, imagine 2 identical tesla coils couple of feet from each other. One is powered and the other isn't. Ofcourse, when the first one is powered there will be an electrostatically induced power in the second one as you know.
> Not unless the second coil has a completed loop so that current may issue. Do not confuse this induced current as being opposite or 180 degrees out of phase with the source current. If it were the coils would be attractive. Now since bipolar coils will share a common ground, once the active coil arcs to the top terminal of the inactive one, such a complete current loop exists.
> A simple analysis of lenz law shows that both the attractive and the repulsive forces exist and should essentially cancel each other out in averaged time. When the magnetic field is expanding against the coil, the coil will produce repulsion, to make currents that produce a magnetic field that will oppose the movement of the source magnetic field/ likewise the source field in collapse will have the object field in attraction, working against the source field in collapse. HOWEVER ALL OF THESE ARGUMENTS ARE MOOT, BECAUSE THE ADJACENT SECONDARY IS OPEN CIRCUIT AND HAS NO COMPLETION PATH OF CURRENT TO MANIFEST THIS LENZ LAW EFFECT. Lenz law obviously acts to produce a magnetic field 90 DEGREES OUT OF PHASE with the source field causing these effects.
> > My question is therefore:
> > Is there an attraction electrostatic force between the two Tesla coils? there should be? if not? why?
> Yes on my bipolar design identical coils are used but by opposite relative top and bottom connections the primary currents go in opposite directions on each primary, insuring that they are opposite, or 180 degrees out of phase.
> 10 & 20 Volt Operation of Wireless Bipolar TC via 666 Pancake Spirals
> shows the needle actually moving towards the opposite coil on the 20 volt test, where I had to separate them. This may not have been obvious or been noted in the video, but this attractive electrostatic force definitely manifests itself.
> > Thanks