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IN a loud speaker there are two magnets. one permanent magnet that always has its northpole pointing in the same direction , and one electro magnet that can change its magnetic field in direction and magnitude. IF both northpoles point into the same direciton ,the speaker cone is pushed out, if both point in opposite directions the speaker cone is pulled in. The direction and magnitude can be controlled by the current passing through the electro magnet.
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∙ 14y ago
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How does a speaker make sound with electric energy?
A loudspeaker contains a metal coil, known as an electromagnet, that creates a magnetic field when an electrical current passes through it. It is the action of the electromagnet that is responsible for converting electrical energy into audible sound.
Where are the electromagnets in a loudspeaker?
Electromagnets are not used in commercially available loudspeakers due to unlinear sound reproduction, noise induced by the electromagnet current and cost. A permanent magnet with a moving coil in the magnet gap is far superior to an electromagnet considering these three parameters.
What device use magnet and electricity?
Electromagnet
How does a doorbell use an electromagnet?
The electromagnet is only part of the mechinism the whole item is called a solenoid which has a magnetized rod inside the electromagnet when 24 volts is applied the solenoid springs out of the coils of the electromagnet striking the bell. When released the rod returns by use of a spring and strikes another bell. Ding, Dong.
When would you want to use an electromagnet rather than a permanent magnet?
When you need a magnet you can turn on and off an electromagnet is used.
How does a speaker make sound with electric energy?
A loudspeaker contains a metal coil, known as an electromagnet, that creates a magnetic field when an electrical current passes through it. It is the action of the electromagnet that is responsible for converting electrical energy into audible sound.
Where are the electromagnets in a loudspeaker?
Electromagnets are not used in commercially available loudspeakers due to unlinear sound reproduction, noise induced by the electromagnet current and cost. A permanent magnet with a moving coil in the magnet gap is far superior to an electromagnet considering these three parameters.
What does a loudspeaker use to turn electric energy into sound?
magnets!
How do you use a electromagnet?
electromagnetically
Does lgks360 have loudspeaker?
lg ks360 does have a loudspeaker !
Does a doorbell use an electromagnet?
yes it does
Does an electric lamp use an electromagnet?
No.
Is loudspeaker an input device?
No, Loudspeaker is an output device.
What is the duration of The Loudspeaker?
The duration of The Loudspeaker is 1.12 hours.
How do you disrupt or jam a loudspeaker?
up your neighbour's loudspeaker?
How does a stereo speaker use an electromagnet to produce sound?
An electromagnet drives the stereo speaker to provide the sound.
What kind of energy does an electromagnet use?
electromagnetism
