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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.
A 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.
An 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.
It converts electrical signals into vibrations of a diaphragm.
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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 does a loudspeaker change electrical energy into?
A loudspeaker changes electrical energy into sound energy by converting the electrical signal into vibrations that move the speaker cone and produce sound waves.
What kind of machine converts an electrical signal into a sound wave with an increase in loudness?
A speaker is a device that converts an electrical signal into a sound wave with an increase in loudness. The electrical signal causes the speaker's diaphragm to vibrate, producing sound waves that we can hear.
What kind of energy transfers in a loudspeaker?
Electrical energy is transferred into mechanical energy in a loudspeaker. The electrical signal from the audio source causes the speaker cone to move back and forth, creating sound waves that we hear as sound.
What type of energy is a loudspeaker?
A loudspeaker converts electrical energy into sound energy by vibrating a diaphragm to create sound waves that we can hear.
What is type of input of loudspeaker?
The type of input for a loudspeaker is an electrical signal that is typically transmitted through wires or cables connected to an amplifier or audio source. The electrical signal is converted into mechanical vibrations that produce sound waves, which are then emitted by the loudspeaker.
What type of energy does a loudspeaker produce?
A loudspeaker converts electrical energy into mechanical energy to create sound waves. The electrical signal from the audio source is converted into variations in air pressure, which our ears perceive as sound.
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 are the main energy changes in a loudspeaker and microphone?
In a loudspeaker, electrical energy is converted into mechanical energy to produce sound waves. In a microphone, sound waves cause a diaphragm to vibrate, converting the mechanical energy into electrical signals.
What is the machine that converts en electrical signal into a sound wave with an increase in loudness called?
That machine is called a speaker or a loudspeaker. It converts electrical signals into sound waves by vibrating a diaphragm to produce audible sound.
What kind of energy conversions take place in a loudspeaker?
In a loudspeaker, electrical energy is converted into mechanical energy as the electrical signal from the amplifier is used to move the speaker cone back and forth. This mechanical energy then creates sound waves that travel through the air to produce sound.
What is the energy transfer of a loud speaker?
A loudspeaker converts electrical energy into mechanical energy to produce sound waves. When an electrical signal is passed through the speaker's coil, it interacts with a magnet to create vibrations that move the speaker cone and produce sound.
What is a device which transforms electrical energy to sound energy?
A loudspeaker
