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Principle is electromagmnetism. When a conductor cuts magnetic field electricity is induced in the conductor (Fixed magnet). When a magnet is moved near a conductor electricity is generated in the conductor (Fixed conductor).
In speakers magnet is fixed and the conductor (in the form of a coil is fixed to the back of the diaphragm) is allowed to move freely. As the coil is fixed to the diaphragm the movements of the coil is reciprocated by the movements of the diaphragm.
Our voice induces varying current in the microphone and the same varying current is passed through the coil of the speaker hence it moves in the static magnetic field.
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoUsually a round cylindrical magnet is used in a speaker. It is not necessary that a round magnet be used. Any shape could be used, but round is just an easy shape to build a speaker with. When electricity flows through a wire coil called the"voice coil", the round magnet repels or attracts the voice coil. The voice coil is attached to a cone of paper or fabric, and this cone vibrates the air when it moves. This vibration of air is the sound that you hear from the speaker..
Wiki User
∙ 13y agoThe magnet moves the speaker to move air to produce sound.
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What is the use of a magnet in a mobile phone?
sometimes there used in speakers.
How do speakers and headphones work?
Speakers use pulses of electricity to activate a small electromagnet that surrounds another magnet. it has a plastic covering, so as to mimic the vibration of our vocal chords and make noise.
If the car didnt have speakers and you put speakers in can you get the speakers back?
Yes, you will need a screwdriver though, and a smart idea is to put the srews on the back magnet of the speaker
Examples of permanent magnets?
Compass, speakers, fridge magnet, gas analyser
How do you replace the rear speakers in a 1993 Cadillac Sedan De Ville?
Access the speakers through the trunk. Under the rear deck you can see the magnet of the speakers. I think they just unscrew out from there.
What are the objects that use electromagnets?
Speakers! All speakers are is a magnet on the back of a cup to push air. More complex than that, but its a general jist of it. An alternator in a car is another one. Check out http://en.wikipedia.org/wiki/Electromagnets#Uses_of_electromagnets for a good list.
How does lectromagnet work in loud speakers?
The electromagnet is a very important part of loud speakers. The electromagnet is always placed in the front of the magnet. When the electricity goes through the electromagnet the field is changed and this produces the vibrations in speakers.
Is the magnet in a compass a permanent magnet or electronic?
A. Compasses typically use a permanent magnet.
What is an example of a magnetic?
Steel is a magnet material, but not all metals are magnetic, like Aluminum.
Did Michael Jackson use magnet in dancing?
He didn't use a magnet. He do his dance by his own moves.
What is an object that attracts metal?
It is a magnet or a electro-magnet. If you are trying to use it as a metal detector then you will need a really strong magnet!
What magnet does a magnetic strip use?
To remain a magnet it has to be made out of steel as steel makes a permanent magnet.
