How to conduct electricity through water without electrodes?

[kevin_tee]

More specifically, how to conduct electricity through water without submerging electrodes into water? I can't think of other way except using high voltage to arc across air into water, but this method only work for high voltage. Any ideas? Thanks

 

[StanEvans]

Other than any form of contact with the water I think that a high voltage arc would be the only other option.

 

[Merlin3189]

I've never tried it (yet!), but if you had a loop of water magnetically linked to a coil, presumably a current could be induced, just as with any other conductor.

 

[kevin_tee]

I've never tried it (yet!), but if you had a loop of water magnetically linked to a coil, presumably a current could be induced, just as with any other conductor.

Hmmm... Interesting, I though electricity can only be induce if the material have a magnetic property.

 

[Merlin3189]

Copper is not ferromagnetic, but works well in transformers.

 

[kevin_tee]

Copper is not ferromagnetic, but works well in transformers.

But the core of the transformer is ferromagnetic. Copper is just to create magnetic field. But I think copper will also work. Aren't there research on this?

 

[Merlin3189]

I don't know about research on the magnetic properties of copper.
What I am suggesting is a transformer with normal primary coil (copper), normal core (iron) and a secondary coil of a loop tube of water.

 

[davenn]

But the core of the transformer is ferromagnetic. Copper is just to create magnetic field.

no,
Transformers will still work without an iron core, the just don't work as well at lower frequencies

Many dual coil inductors in RF circuits have no ferrite material in them

go do some reading on electromagnetic induction :)Dave