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How Dynamos Work Although the name dynamo was originally associated with all types of electrical generators, currently it is only used to describe mechanisms capable of producing direct current and small devices used to generate the power running the lights of bicycles (see featured image). A dynamo is basically a device able to conv...	1 August 2008 08:49 GMT

How Relays Work Relays are a type of electrical switches that are controlled through an electrical circuit, separate from that of the actual switch. Typical relays are mostly operated through an electromagnet exerting a magnetic field on a mechanical actuator. Nevertheless, advancements in the semiconductor industry during the last ...	14 June 2008 06:14 GMT

How Electromagnets Work An electromagnet is a device used to generate a magnetic field with the help of an electric current. The principle that electromagnets work by is used in a wide range of electric and electronic devices such as electric motors, solenoids, tape drives and even speakers and microphones. The simplest electromagnet you ca...	24 May 2008 07:00 GMT

How Magnetos Work Magnetos are generally used to generate extremely high voltages for small internal combustion engines, such as those equipping chainsaws, small cars and even small airplanes. The engine of the Cessna 152 airplane for example, has an ignition system using a magneto to increase engine reliability. The output voltage ge...	19 May 2008 06:52 GMT

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