2006-10-30 04:51:15 · 3 answers · asked by Kaneisha C 1 in Consumer Electronics ➔ Other - Electronics
Okay, basically "sound" is carried as waves of different air pressures. Sounds are often found from things that vibrate as they disturb the air around them.
Loudspeakers work by disturbing the air by vibrating it with a diapgram. In electrically powered speakers the diaphragm is moved by the activation of an electromagnet to pull it towards a permanent magnet. It does this really fast to make sound waves
The link has a little drawing of it.
2006-10-30 04:56:32 · answer #1 · answered by rchlbsxy2 5 · 0⤊ 0⤋
i'm guessing you want to know what the magnet on the back of a speaker is for.
the magnet on the back is there to create a magnetic field that the voice coil sits in. the voice coil is coil of wire (creating an electromagnet) that's attached to the paper cone of the speaker. as current moves through the coil, it changes magnetic polarity and moves in or out accordingly. rapid and controlled succession in the form of an AC signal from a power amplifier creates sound.
that's my basic explanation. http://en.wikipedia.org/wiki/Loudspeaker is reccommended reading.
2006-10-30 13:00:10 · answer #2 · answered by Jay Moore 5 · 0⤊ 0⤋
explain, "produeson"
2006-10-30 12:53:06 · answer #3 · answered by killer boot 5 · 0⤊ 0⤋