Electric Motor
The modern electric motor dates back to 1831, when American physicist Joseph Henry published a paper describing an electric motor which, he showed, was basically the reverse of the elec...
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Electrical Motors and Meters
Electrical motors are devices that convert electrical energy into mechanical energy. Electric meters use electric motors and counting devices to translate current flow int...
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William Shockley (seated), John Bardeen (standing, left), and Walter H. Brattain doing transistor research at Bell Telephone Laboratories (New York, 1948).(Corbis Corporation)
Electric Motor Sy...
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