MLA Citation: Bloomfield, Louis A. "Question 280"
How Everything Works 21 Jun 2018. 21 Jun 2018 <http://howeverythingworks.org/print1.php?QNum=280>.
280. How is sound made by a speaker?
As the current passing through the speaker's coil changes, the speaker cone moves back and forth toward or away from the speaker's permanent magnet. This moving cone pushes or pulls on the air, creating compressions and rarefactions that propagate through the air as sound.

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