How do electromagnets work in speakers

We used a phone to play music, and opted to use an aux cord and alligator clips to connect the copper wire to the headphone jack. Make sure to use the 1st and 3rd section of the aux cord.

You can also sacrifice a headphone jack and wrap the exposed wires around the two ends of the copper wire. When using the enameled wire, you need to sand the ends of the wires down so that the copper wire is showing. Wrap the wire around the magnet the more turns, the better the results! This magnet helps the speaker work better, and has the added result of keeping your magnets easily attached to the speaker. When you put these all together, you should have a speaker!

To increase induction, you can increase how many turns and how big the coil of wire is, and you can increase the strength of magnets. The electrical audio signal can also be interpreted as a wave. The frequency and amplitude of this wave, which represents the original sound wave, dictates the rate and distance that the voice coil moves. This, in turn, determines the frequency and amplitude of the sound waves produced by the diaphragm.

Different driver sizes are better suited for certain frequency ranges. For this reason, loudspeaker units typically divide a wide frequency range among multiple drivers. In the next section, we'll find out how speakers divide up the frequency range, and we'll look at the main driver types used in loudspeakers.

Sign up for our Newsletter! Mobile Newsletter banner close. Mobile Newsletter chat close. A speaker is composed of a permanent magnet, an electromagnet and a vibrating cone. Electricity flowing through coils of wire create an electromagnet.

This electromagnet is attached to the cone. As current flows through the coils of wire the electromagnet that is created is quickly pulled towards the permanent magnet and then quickly repelled from it taking the cone with it.

Speakers produce loud noise when the cone vibrates a great deal, or soft noise when it moves a small amount.

What is the relationship between amount of current flowing through the coils of wire and the strength of the electromagnet produced?