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In electrical engineering, electric machine is a general term for machines using electromagnetic forces, such as electric motors, electric generators, and others. They are electromechanical energy converters: an electric motor converts electricity to mechanical power while an electric generator converts mechanical power to electricity.
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Electromagnetic induction has found many applications, including electrical components such as inductors and transformers, and devices such as electric motors and generators. History Faraday's experiment showing induction between coils of wire: The liquid battery (right) provides a current that flows through the small coil (A) , creating a ...
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A household electric fan A large cylindrical fan. A fan is a powered machine that creates airflow. A fan consists of rotating vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner.
The Vietnamese Wikipedia initially went online in November 2002, with a front page and an article about the Internet Society.The project received little attention and did not begin to receive significant contributions until it was "restarted" in October 2003 [3] and the newer, Unicode-capable MediaWiki software was installed soon after.
Drawing of the machine with part of the tank cut away, showing the belts and high voltage electrode. A view of the atom smasher in the 1930s or 1940s, when it was operational. In a Van de Graaff generator , invented in 1929 by Robert J. Van de Graaff , an endless rubber or fabric belt carries electric charges from a roller at the base of the ...
Tiếng Việt; 粵語; 中文; Edit links ... Electrical generators (6 C, 72 P) Engines (34 C, ... Pages in category "Machines" The following 60 pages are in this ...