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GENERAL
In order to change the signal that a computer or phone sends into sound that you can hear, speakers contain an electromagnet, or a metal coil which creates a magnetic field when an electric current flows through it. This coil is quite similar to a normal (permanent) magnet, but the electromagnet has the ability to flip its poles and change polarity. ("How")
Inside a speaker, an electromagnet is placed in front of a permanent magnet. The electromagnet moves around to help make sound, meanwhile the permanent magnet is fixed in one place. As electricity passes through the coil of the electromagnet, the direction of its magnetic field is changed. This means that it ends up quickly moving closer to and farther from the permanent magnet. ("How")
The electromagnet is attached to a cone made of a flexible material such as paper or plastic which amplifies these vibrations, turning them into sound waves that your ear is able to pick up ("How"). Sound waves are longitudinal waves or, pockets that consist of different density. These sound waves hit our eardrum and we are able to hear the sound that the speaker has produced ("HowStuffWorks").
GENERAL
In order to change the signal that a computer or phone sends into sound that you can hear, speakers contain an electromagnet, or a metal coil which creates a magnetic field when an electric current flows through it. This coil is quite similar to a normal (permanent) magnet, but the electromagnet has the ability to flip its poles and change polarity. ("How")
Inside a speaker, an electromagnet is placed in front of a permanent magnet. The electromagnet moves around to help make sound, meanwhile the permanent magnet is fixed in one place. As electricity passes through the coil of the electromagnet, the direction of its magnetic field is changed. This means that it ends up quickly moving closer to and farther from the permanent magnet. ("How")
The electromagnet is attached to a cone made of a flexible material such as paper or plastic which amplifies these vibrations, turning them into sound waves that your ear is able to pick up ("How"). Sound waves are longitudinal waves or, pockets that consist of different density. These sound waves hit our eardrum and we are able to hear the sound that the speaker has produced ("HowStuffWorks").
WOOFERS VS TWEETERS
The most notable difference between woofers and tweeters is the sound that they produce. Woofers produce sound in a lower frequency, while tweeters produce notes of higher frequency. A tweeter uses a smaller cone and maintains the ability to move faster in order to produce higher notes. Woofers have much larger cones that allow for lower notes to be played. The bigger cone cannot move has fast and produces notes at a lower frequency. ("HowStuffWorks")
The most notable difference between woofers and tweeters is the sound that they produce. Woofers produce sound in a lower frequency, while tweeters produce notes of higher frequency. A tweeter uses a smaller cone and maintains the ability to move faster in order to produce higher notes. Woofers have much larger cones that allow for lower notes to be played. The bigger cone cannot move has fast and produces notes at a lower frequency. ("HowStuffWorks")