0
How does a loudspeaker convert an electrical signal into sound?
Wiki User
∙ 13y ago
There are more than one type of loud speaker but the most common is a coil of wire suspended in a magnetic field. When alternating currents are passed through the wire, resulting vibrating magnetic fields push and pull against the permanent magnet. The coil is connected to a surface, usually conical, which moves back and forth because of this pushing and pulling causing sympathetic sound vibrations in the air adjacent to this surface which then move away as sound waves.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoA loudspeaker has a coil that is attached to the speaker's cone. The electrical signal from the amplifier goes through this coil. This signal current produces a magnetic field in response to the signal. There is a permanent magnet also at the back of the speaker. The magnetic field from the coil either pushes or pulls in relation to the magnetic field in the permanent magnet, causing a mechanical motion of the speaker cone, producing sound pressure changing when the cone moves the air around it.
Wiki User
∙ 13y agoAn electromagnet pulls a piece of iron attached to a diaphragm (the speaker cone).
Thus a change in the current flowing in an electrical circuit causes a movement of the air ... which we call hearing.
Wiki User
∙ 15y agoIt converts electrical signals into vibrations of a diaphragm.
Wiki User
∙ 12y agoThe related link below explains this very well.
Add your answer:
Earn +20 pts
What are the devices which converts sound signal into electrical signal other than microphone?
One is the hydrophone, used to pick up sound waves underwater.
Is it possible to convert voice signal into electrical energy in mobile phones?
In principle, yes, but you wouldn't want to wait around to do the job that way. Human ears are very sensitive, and the sounds around you carry very little energy compared to the energy used by common electrical gadgets. One or two watts of pure tone from a loudspeaker will drive you out of the living room, and the "ear buds" are blasting no more than a few milliwatts of sound power into your ear canals. You could hang a microphone out of your window, and use the sounds of traffic as you drive. It might charge your cellphone in a couple of weeks ... if you leave the phone turned off and don't use it.
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 are the applications of a capacitive transducer?
Capacitive sensors are used mainly to detect proximity, usually that of people. The operating principle is that the capacitance of the capacitor varies as material comes between the two plates of the capacitor, and you can determine the presence of something via the measurement of the capacitance.
What is difference between transducer and transmitter?
today the general rule of thumb is that if the pressure sensor has a millivolt (e.g. 30mV or 100mV) or non-amplified output it is a pressure transducer. If the pressure sensor has a voltage (e.g. 0-5Vdc, 0-10Vdc or 1-5Vdc) output it is an amplified voltage output pressure transducer. If a pressure sensor has a current loop output (e.g. 2 wire 4-20mA or 3 wire 0/4-20mA) it is a pressure transmitter. Simply we can tell as Transducer: Any physical Quantity is converted into Electrical Signal. Transmitter: to make the amplified RF electrical signal to radiation with help of Electric and maganetic signal.
What kind of machine converts an electrical signal into a sound wave with an increase in loudness?
I guess that machine will be a loudspeaker.
What are the main energy changes in a loudspeaker and microphone?
loudspeaker of telephone: electrical to sound energy microphone of telephone: sound to electrical energy
What is an example of electrical energy changing into sound energy?
radio you convert a electrical sound wave into a sound wave
What does a microphone and speaker have in common?
They both convert between electrical impulses and sound waves. The microphone converts sound waves into electrical impulses and the loudspeaker converts electrical impulses into sound waves.
What type of energy is a loudspeaker?
A loudspeaker is a transducer that converts electrical energy to sound energy.
What is a device which transforms electrical energy to sound energy?
A loudspeaker
What does a loudspeaker change electrical energy into?
Sound - vibrations in the air.
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.
Name the process in a radio which make the signal stronger before the loudspeaker changes it to a sound signal?
Amplification.
How does the loudspeaker cone produce a sound?
they produce electrical enery which turns into vibrations
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....
