Difference between revisions of "Speaker"
| Line 6: | Line 6: | ||
===About Speakers=== | ===About Speakers=== | ||
: [[Speaker]]s use an [[electromagnet]] and a [[Permanent Magnet|permanent magnet]] to [[vibration|vibrate]] a paper cone. | : [[Speaker]]s use an [[electromagnet]] and a [[Permanent Magnet|permanent magnet]] to [[vibration|vibrate]] a paper cone. | ||
| − | : When the [[current]] changes direction the paper cone moves. An [[Alternating Current|alternating current]] causes the cone in the [[speaker]] to vibrate]]. | + | : When the [[current]] changes direction the paper cone moves. An [[Alternating Current|alternating current]] causes the cone in the [[speaker]] to [[Vibration|vibrate]]. |
{| class="wikitable" | {| class="wikitable" | ||
Revision as of 17:01, 20 October 2018
Key Stage 3
Meaning
A picture of a speaker.
A speaker is an electrical device that vibrates to produce a sound.
About Speakers
- Speakers use an electromagnet and a permanent magnet to vibrate a paper cone.
- When the current changes direction the paper cone moves. An alternating current causes the cone in the speaker to vibrate.
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| A diagram of a speaker. |