In 1829, the first electric motor was invented that converted electrical energy into mechanical energy. The first capable electric motor invention was credited to the British scientist William Sturgeon. These electrical motors were placed into everyday appliances such as machine tools and household appliances. There were three different size of electric motors. The smallest motors were used in items like wristwatches. The medium-sized motors had the characteristics provided convenient mechanical power for industrial uses. The largest electrical motors were used in the propulsion of ships and water pumps ranging a usage of a million watts. The principle of production of mechanical force by the uses of the electric currents and a meagnetic field were known as early as 1821. The electric motors of efficiency were constructed throughout the nineteenth century which led to the distribution of the electric motor on a large scale that required the efficient electrical generators and electrical distribution networks. This electric motor led to the production of many other motors that are used even today, two being the DC motor and the AC motor. A DC motor stood for a Direct Current motor and AC standing for a Alternating Current motor. The AC motor had benefits such as the long life, low cost, and the large ratings. There were also a large number os standardized types. The DC motor had a long life span, low mantainance, and high efficiency. Over time, the motors were upgraded to have different power in watts and higher horsepower.
"Electric Motor." Wikipedia, the Free Encyclopedia. 16 Feb. 2011. Web. 17 Feb. 2011. <http://en.wikipedia.org/wiki/Electric_motor>.
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