
How does a magneto work?
May 08, 2000 · In an electromagnet there is a coil of wire around an iron bar (the armature). When you apply current to the electromagnet's coil ( with a battery), the coil creates a magnetic field in the armature. In a generator, you reverse the process. You move a magnet past the armature to create electric current in the coil. A magneto consists of ...