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    The first type of motor built is still in widespread use In the late 1800s, several inventors built the first working motors, which used direct current (DC) power. After the invention...
    Oct. 1, 2003
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    Both voltage and current divide in these circuits Electric circuits often consist of several elements, some combined in series and others in parallel. The methods used to analyze...
    July 1, 2003
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    Simple series circuits can lead to not-so-simple problems.
    May 1, 2003
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