How Do You Use Permanent Magnets As A Power Source?
A magnet creates electricity directly when an electric circuit cuts through its magnetic field lines—a phenomenon first noticed by Michael Faraday quite by accident during a demonstration during the nineteenth century. Try making a simple generator using magnets, wire, a nail, some cardboard and a lightbulb. The magnets will spun so that their lines cross the wires, producing an electromotive force. Fold a piece of cardboard over on itself, making an enclosure with two open ends. Make four folds, creating four faces at right angles with each other, with one face consisting of two overlapping ends. Make its shortest width a little wider than your magnets, which you’ll need to fit inside, and shorter than the nail you plan to use. Puncture the exact center of one the cardboard’s broader sides with a nail, piercing all the way through the other side, and leave it there. Stack several magnets together on opposite sides of the nail within the cardboard enclosure, placing equal numbers of
