Difference between revisions of "Microphone"
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===About Microphones=== | ===About Microphones=== | ||
: [[Sound]] transfers [[information]] which a [[microphone]] converts into an electrical signal. | : [[Sound]] transfers [[information]] which a [[microphone]] converts 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. | + | : [[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 [[Electrical Current|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. |
{| class="wikitable" | {| class="wikitable" | ||
Revision as of 14:11, 5 March 2019
Contents
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
- Sound transfers information which a microphone converts into an electrical signal.
- 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.
 |
| A diagram of a microphone. |
Key Stage 4
Meaning
A picture of a microphone.
A microphone is an electrical device that turns the vibration of a sound into an electrical signal using the generator effect.
About Microphones
- Sound transfers information which a microphone converts into an electrical signal.
- Microphones use a coil of wire and a permanent magnet to induce a current in the coil when receiver vibrates.
- When the receiver vibrates the coil of wire moves around the permanent magnet to make a current in the coil of wire.
|
| A diagram of a microphone. |