Noise and electricity

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#1 21672254 02 Sep 2014 07:02

Gamaliel Aji Gamaliel Aji

Anonymous

Post #1
21672254 02 Sep 2014 07:02

How can I convert noise or sound to electricity?
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#2 21672255 02 Sep 2014 07:57

John Schmitz John Schmitz

Anonymous

Post #2
21672255 02 Sep 2014 07:57

Sound can be converted to electricity by using a microphone. Older microphones induced current into a coil, the inverse of a speaker, newer ones use a piezo-electric crystal that generates electricity with pressure variations.

By noise I assume you mean sound noises and not electronic noise.
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