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Salman Khan talk at TED 2011 (from ted.com)
khanacademy • 1,566,210 views
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A direct current (DC) motor is a fairly simple electric motor that uses electricity and a magneti...
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From the Physical Science course by Derek Owens. The motor effect and how it it is fundamentally caused by forces on charges moving through a magn...
derekowens • 15,829 views