Electric Motor/Generator: this inexpensive and common motor can also serve as a generator of AC electricity- here lightning an LED when the shaft of the rotor is spun by hand. Most electrical energy we use today is produced by moving a magnet near a coil of wire (known as Faraday’s law of induction) to produce an electric current. Removing the permanent magnet casing reveals this design to use 9 separate copper windings. I made a transparent second rotor with six neodymium magnets- and when thes

On 17 and 18 October 1831, Michael Faraday developed the first-ever electric generator. Watch the demo: as the magnet moves, the lines of magnetic force repeatedly intersect with the wire, exciting the electrons in the wire and generating electrical current 💡 Virtually all electric power is produced using Faraday’s principles, whether the prime source of energy is coal, oil, gas, nuclear, hydro, or wind - all these fuels are used to drive a generator (or turbine) which generates the electrical