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  2. Electric motor - Wikipedia

    en.wikipedia.org/wiki/Electric_motor

    An industrial electric motor . An electric motor is a machine that converts electrical energy into mechanical energy.Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft.

  3. Single-molecule electric motor - Wikipedia

    en.wikipedia.org/wiki/Single-molecule_electric_motor

    The motor, the world's smallest electric motor, [2] is just a nanometer (billionth of a meter) across [3] (60 000 times smaller than the thickness of a human hair). It was developed by the Sykes group and scientists at the Tufts University School of Arts and Sciences and published online September 4, 2011.

  4. DC motor - Wikipedia

    en.wikipedia.org/wiki/DC_motor

    Small DC motors are used in tools, toys, and appliances. The universal motor, a lightweight brushed motor used for portable power tools and appliances can operate on direct current and alternating current. Larger DC motors are currently used in propulsion of electric vehicles, elevator and hoists, and in drives for steel rolling mills.

  5. Synchronous motor - Wikipedia

    en.wikipedia.org/wiki/Synchronous_motor

    Small synchronous motor with integral stepdown gear from a microwave oven. A synchronous electric motor is an AC electric motor in which, at steady state, [1] the rotation of the shaft is synchronized with the frequency of the supply current; the rotation period is exactly equal to an integer number of AC cycles.

  6. Stepper motor - Wikipedia

    en.wikipedia.org/wiki/Stepper_motor

    A stepper motor, also known as step motor or stepping motor, [1] is a brushless DC electric motor that rotates in a series of small and discrete angular steps. [2] Stepper motors can be set to any given step position without needing a position sensor for feedback. The step position can be rapidly increased or decreased to create continuous ...

  7. A tiny electric motor makes a big difference in the Mercedes ...

    www.aol.com/tiny-electric-motor-makes-big...

    The SL 43 delivers a fresh combination of heritage, style, performance and pure convertible pleasure.