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Microphones are used to convert sound into electrical signals.
A microphone has 3 parts to it. A diaphragm, a magnet, and an inductor (a coil of wire). The diaphragm and the magnet are attached to each other, while the inductor is coiled around the magnet. Since sound is a pressure wave, the pressure wave moves the diaphragm back and forth. The magnet which is attached to it also moves back and forth in and out of the inductor coil. The motion of the magnet through the coil changes the strength of the magnetic field at the inductor and this causes an electrical current to flow in the inductor.
So it is not the magnet itself that converts the sound into electrical signals, it is a 3 step process.
- Diaphragm turns pressure waves into motion
- Magnet turns the motion into a changing magnetic field
- Inductor turns the changing magnetic field into an electric current.
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∙ 14y ago
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What instrument converts electrical energy to sound or image signals in a radio or television?
Loudspeakers and earphones convert electrical energy to sound energy. LCD monitors, plasma screens, and CRTs make images out of electrical signals.
What is the energy transformation of megaphone?
Electrical energy gets converted to sound energy. When we speak into the speaker, our sound waves get converted into electrical signals. These signals get amplified and emitted as louder sound. Thus, electrical energy (electrical signals) gets converted into sound energy (amplified/louder sound).
How can you convert electrical energy to mechanical sound and heat energy?
We can convert electrical energy into mechanical energy in mixer and grinder. We can convert electrical energy into sound energy in various sound systems. We can convert electrical energy into heat energy in electric water or room heater.
How does sound travel down wire?
Sound is usually an acoustical wave in air. When this is converted e.g. by a microphone to an electrical voltage that can be sent through a wire. An amplifier and a loudspeaker can convert this audio signal back to an acoustical wave, you can listen to.
Sound energy to electrical energy?
Microphone is a device which coverts the longitudinal sound vibrations falling on it into electrical signals.
What piece of station equipment converts electrical signals to sound waves?
a speaker's 'coil' (and magnet) converts electrical signals to sound
After your ears convert sound waves into electrical signals where are the signals sent for interpretation?
The brain
Does a tape player have a magnet in it?
Yes, a tape player typically has a magnetic head that reads the magnetic information encoded on the tape. The magnetic head uses a magnet to convert the magnetic signals on the tape into electrical signals that can be amplified and reproduced as sound.
What device converts sound waves to electric current?
Microphones will convert sound waves into electrical signals. An ear (i..e human ear) will also convert sound waves into electrical signals.
What instrument converts electrical energy to sound or image signals in a radio or television?
Loudspeakers and earphones convert electrical energy to sound energy. LCD monitors, plasma screens, and CRTs make images out of electrical signals.
How was Alexander Graham Bell's telephone is related to electricity or magnetism?
Telephones converts sound into electrical signals, and backwards. Speakers with dynamic-coil transdusers convert electrical signals into sound by using the properties of electromagnetism.
From what material is the microphone made of?
Microphones have been made from various materials. The diaphragm used to pick up the sound is thin metal. The magnet to convert the sound into electrical signals is sometimes metal sometimes a special material. The case of the microphone may be plastic or metal
Which is the best moving coil type instrument to convert sound to electricity?
IF you use speaker as microphone, you can use it as a transducer to convert soun energy into electrical signals
What is the energy transformation of megaphone?
Electrical energy gets converted to sound energy. When we speak into the speaker, our sound waves get converted into electrical signals. These signals get amplified and emitted as louder sound. Thus, electrical energy (electrical signals) gets converted into sound energy (amplified/louder sound).
How can you convert electrical energy to mechanical sound and heat energy?
We can convert electrical energy into mechanical energy in mixer and grinder. We can convert electrical energy into sound energy in various sound systems. We can convert electrical energy into heat energy in electric water or room heater.
How do you convert thermal into sound energy?
Two step process: First convert heat to electrical and then cpnvert electrical to sound....
What is a microphone?
a transducer that converts sound to electrical signals
