![]() ![]() Magnetic solenoids are also transducers that convert electrical power to mechanical motion, but can produce motion over only a limited distance.Įlectric motors are much more efficient than the other prime mover used in industry and transportation, the internal combustion engine (ICE) electric motors are typically over 95% efficient while ICEs are well below 50%. They are lighter, physically smaller, mechanically simpler and cheaper to build, more durable, can provide instant and consistent torque at any speed, can run on electricity generated by renewable sources and do not emit carbon into the atmosphere. For these reasons electric motors are replacing internal combustion in most applications.įaraday's electromagnetic experiment, 1821 īefore modern electromagnetic motors, experimental motors that worked by electrostatic force were investigated. ![]() The first electric motors were simple electrostatic devices described in experiments by Scottish monk Andrew Gordon and American experimenter Benjamin Franklin in the 1740s. ![]() ![]() The theoretical principle behind them, Coulomb's law, was discovered but not published, by Henry Cavendish in 1771. #How to type fractions in microsoft word 365 generator. ![]()
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