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AC/DC: What's the Difference?
This site explains the difference between alternating and direct current (AC and DC) using good graphics and animations.
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Hits: 379
Beats
When two sound waves of different frequency approach your ear, the alternating constructive and destructive interference causes the sound to be alternatively soft and loud - a phenomenon which is ...
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Hits: 312
How a speaker works
An animated cut-away picture of a loud speaker, with a synchronized oscilloscope screen representation of the sound. Sound included, plus a description of how the alternating current and magnetic ...
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Hits: 323
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