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Q: Many stereo speaker cables are made of copper wire surrounded by rubber. The electricity travels down the copper portion of the cable while the rubber protects you from being zapped by the electricity?
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Continue Learning about Physics

How can a loud speaker make sound energy with electric energy?

It converts the electric energy into vibrations which are sound energy.


What is the energy transfer of a loud speaker?

Electrical energy -> magnetic energy ---------> sound energy (signal) (electricity in voice coil) (sound waves)


Why does a speaker need an electromagnet not a permanent magnet?

One of the main kinds of speakers needs both. Sound in the form of varying electricity is fed through part of the speaker known as the 'voice coil' which is actually just an electromagnet. Since the electricity in it is varying the magnetism produced by this coil varies too. The voice coil is placed close to a permanent magnet and the voice coil is permitted to move back and forth in response to the electricity going through it. A big cone is fastened to the voice coil to transmit the movements of the voice coil to the air more efficiently. Thus overall the permanent magnet and the electromagnet work together to produce the sound waves that we hear from a speaker. For a more detailed explanation go to the How Stuff Works web site and search for speaker.


Which device changes electricity to other forms of energy?

Lots of devices do that. A motor will convert electrical energy to mechanical energy (i.e., to movement); a lamp will convert it to light; a speaker will turn it to sound; etc.


Effect that wattage will have on a speaker is defined as?

Wattage is the power applied to a speaker. More power usually means more volume. The sound pressure that a speaker will produce will be defined by the power applied, the resistance or impedance of the speaker (a lower impedance speaker will be louder) and the sensitivity of the speaker as a whole (the efficiency to turn the power into sound).

Related questions

What Changes electricity into sound?

speaker or energy supervisor


What is the difference bt current electricity and electro dynamics?

current electricity =battery , wire electro dynamics = motor , generator , speaker


What are the uses of magnet in daily life?

The making of electricity Computer component Speaker component


What are the criteria for judging question and answer portion?

The criteria for judging the question and answer portion typically include the clarity and relevance of the question, the depth and relevance of the answer provided, and the speaker's ability to articulate their thoughts coherently and convincingly. Judges may also assess the speaker's confidence, poise, and ability to handle impromptu questions effectively.


How can a loud speaker make sound energy with electric energy?

It converts the electric energy into vibrations which are sound energy.


Why does a loudspeaker make no sound when a microphone is plugged directly into it?

Because to drive a speaker you need to amplify the current from the microphone. The microphone alone will not generate enough electricity to move the speaker mechanisms.


How does a surround sound speaker work?

There person listening is surrounded on all sides by speakers. The media is programmed to direct certain sounds through certain speakers.


What is the input for a speaker?

speaker is an output device. It is said as an output device because, most of the speakers are used to hear audio/sounds. The inputs to hear sound from a speaker can be > power/electricity > a device to play the sound (that may be a mic, vcd, dvd, mp3 player or even your computer)


Which electronic components are used in speakers?

Electronic components used in speakers include capacitors, magnets, voice coils, an electrostatic speaker, and speaker wire. These components allow electricity to be converted into audible sound.


Rhetorical device works by protecting a claim from criticism by watering it down so to give the speaker a way out in the case that the claim is challenged?

The rhetorical device that protects a claim from criticism by giving the speaker an out is called weaseling. Weaseling involves giving vague answers or adding qualifiers that suggest they may be wrong, which affords plausible deniability to the speaker.


What is the energy transfer of a loud speaker?

Electrical energy -> magnetic energy ---------> sound energy (signal) (electricity in voice coil) (sound waves)


Country scene what is this speaker looking at what does she hear?

The speaker is looking at a peaceful country scene, with rolling hills, green meadows, and maybe some grazing animals. She hears the gentle rustling of leaves in the breeze, chirping birds, and the distant sound of a babbling brook. Overall, she is surrounded by the soothing sounds of nature.