The main reason why I decided to design electric tiles in this way is because of this kind of reasoning: how can I make the floor conduct electricity? a kind of electrical grid... But then, how will the electricity reach the machines on top? Make the grid also work as a coil.
If you take a metal rod and wrap it with copper wire, then you can make a very simple copper coil, wich with enough electricity, can easily conduct electricity across an entire field, allowing you to even power a light bulb from a little distance, without touching the coil itself.
The same logic is applied here with this mod. The electric variants of the tiles are, "practically", the same tiles with some coils incrustated inside, which allow both electricity moving through the full grid by direct contact with adjacent coils (other tiles), as well as the machines on top (these are close enough to be affected by the electrical field).
electromagnetism, I guess that is the correct word for this logic.