Ive had this question for a long time now, so this is a last resort. For context, i asked every damn teacher in the school that has anything to do with math, and many other, like a Nam vet, former ford engineer, and so many fucking others. The question is, in space sufficiently far away from any grav. field, if you had a coil and a magnet, if you push the magnet in the coil, you get a electrical current, (duh) so if you had a long enough coil, you would produce more energy than was required to push it. So you could have two motors that push the magnet back and forth always generating more energy than is used. The thing is this breaks law of conservation of energy. So how does this make any sense? Ive thought of Lenz's law, but haven't been able to test, since, ya know, I'm not a fucking Astronaut. (P.S Sorry for the semi click bait title.)