Difference between revisions of "Microphone"
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===About Microphones=== | ===About Microphones=== | ||
: [[Microphone]]s use a coil of wire and a [[Permanent Magnet|permanent magnet]] to turn a [[vibration]] into an electrical signal. | : [[Microphone]]s use a coil of wire and a [[Permanent Magnet|permanent magnet]] to turn a [[vibration]] into an electrical signal. | ||
| − | : When the receiver [[vibration|vibrates]] the coil of wire moves around the [[Permanent Magnet|permanent magnet]] to make a [[current]] in the coil of wire. | + | : When the receiver [[vibration|vibrates]] the coil of wire moves around the [[Permanent Magnet|permanent magnet]] to make a [[Electrical Current|current]] in the coil of wire. |
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Revision as of 17:42, 20 October 2018
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. |