Microphone
Revision as of 17:41, 20 October 2018 by NRJC (talk | contribs) (Created page with "==Key Stage 3== ===Meaning=== right|300px|thumb|A picture of a [[microphone.]] A microphone is an electrical device that turns the vibration of...")
Key Stage 3
Meaning
A picture of a microphone.
A microphone is an electrical device that turns the vibration of a sound into an electrical signal.
About Microphones
- Microphones use a coil of wire and a permanent magnet to turn a vibration into an electrical signal.
- When the receiver vibrates the coil of wire moves around the permanent magnet to make a current in the coil of wire.
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| A diagram of a microphone. |