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The coil produces a magnetic field. When power is applied to the wire in the coil, the result is a magnetic charge. This magnetic charge is part of how the speaker produces sound.
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Why does a speaker need an electromagnet not a permanent magnet?
One of the main kinds of speakers needs both. Sound in the form of varying electricity is fed through part of the speaker known as the 'voice coil' which is actually just an electromagnet. Since the electricity in it is varying the magnetism produced by this coil varies too. The voice coil is placed close to a permanent magnet and the voice coil is permitted to move back and forth in response to the electricity going through it. A big cone is fastened to the voice coil to transmit the movements of the voice coil to the air more efficiently. Thus overall the permanent magnet and the electromagnet work together to produce the sound waves that we hear from a speaker. For a more detailed explanation go to the How Stuff Works web site and search for speaker.
Why did nikola Tesla make the Tesla coil?
The main purpose for the coil was to study how to bring energy without wires.
How does a audio speaker work?
an audio speaker works by an electro magnetic coil that vibrates when a sound wave or current is running through it. thats what makes the sound.
What is the purpose of an electromagnet in a speaker?
Yes it means iDont Kno Either -.-
A spinning coil of wire is what moves the cone in a speaker?
I think you've answered your own question. It might make an electromagnet by doing this.
Why don't my rear speakers work?
wiring problem! check wire connection form radio to speaker,if ok, check speaker coil connection, speaker coil may be loosed.
What is the purpose of a coil winding machine?
For winding coil.
What is the purpose of ignition coil in the gasoline engine?
the purpose of a coil in a ice moter is it creates a biger spark.
Why do speaker have magnet?
The magnet is part of the 'motor' of the sub. The coil inside the magnet has alternating current running through it. The coil acts as an electromagnet and pulls itself up or pushes itself down moving the cone of the speaker. The bigger the magnet, the stronger the magnetic field inside the speaker where the coil is.
Will using one coil on a dual coil speaker damage it?
with only one coil hooked up, a dual voice coil speaker will suffer a loss in reference efficiency of about 3dB (only half the coil windings are being energized) as well as a significant shift in its Thiele/Small parameters. This renders any enclosure calculations inaccurate unless you remeasure the speakers parameters with only one coil hooked up. Failure to account for the different parameters of a dual voice coil speaker with only one coil powered can result in very poor performance.
What do coil packs do?
The purpose of a coil pack is to supply the spark to the spark plugs.
What does a coil pack do?
The purpose of a coil pack is to supply the spark to the spark plugs.
What is a voice coil?
a voice coil is the electromagnet that causes a speaker horn to move in response to the electrical impulses received from the amplifier.
What By asking questions about the speaker purpose and audience of a text you are?
When asking about the purpose of a speaker and the audience of a text, you're asking what the purpose of the speech is.
How does a field coil speaker work?
A: A speaker has a magnet and the wire is suspended in a zone by a cone whereby +/- current will make the coil move up or down moving the coil and moving the cone causing air displacement as waves of pressure that our ears can detect as sounds in our brains.
Can a moving coil loud speaker be used as a moving coil microphone?
Yes, but with vey low sensitivity and poor frequency response.
What type of microphone is most similar to a speaker?
A dynamic microphone is most similar to a speaker. They both consist of a diaphragm, a voice coil and a magnet.
