You ever took a coil apart and took the wire and placed the wire itself next to a magnet? Well it dont stick to a magnet. Now in a generator as for using coils for generating electricity, they have an iron insert in the middle of the coil,,to increase magnetic energy as the magnet passes the coil,,or in some cases as the coil circles within the magnets. Now what if you made a coil used for electrical generation as a magnet passes it,,out of coil wire that would stick to a magnet? Then we could use coils that dont have an iron insert in the middle, as the coil itself would be its own iron insert, as it would be made of a metal that would attract a magnet. Just a thought, could be something to it as in a way for better electricity generation..Perhaps the coils own natural magnetic qualities then would even add to or generate what many would call free energy.