Sorry if this question doesnt belong here. I have no clue of what I'm about to ask.
I want to know, if possible, how to induce negative/positive charge on objects inside recipients? What I want to achieve is this:
Say plastic recipient A have a liquid and some metal objects inside.
We also have recipient B with the same caracteristics.
Now I want to have positive charge on everything inside recipient A and negative charge on everything inside recipient B without dropping a cable inside each recipient.
I already have positive and negative charge being supplied on different cables. I want to know how to induce the charge wirelessly.