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A radio is built to catch some of the electromagnetic energy sailing past its
antenna, and use that small trace of energy to control electric circuits in the
radio, in order to create a much more powerful copy of the electromagnetic
waves that it caught. When that's been done inside the radio, it'll eventually
use the powerful copy to wiggle the paper cone of a speaker or the diaphragms
in a pair of earbuds, in order to convert some of the electrical energy into sound
energy that can be detected by human ears.
By changing just one step at the end of the process, the powerful copy can be
used to manipulate the motion of the spot on a fluorescent, LCD, or plasma
screen, in order to convert some of the electrical energy into light energy that
can be detected by human eyes.
Wiki User
∙ 12y ago
kiya teshome
Wiki User
∙ 12y agoThe common domestic radio receiver is powered by electricity - a few watts to a few tens of watts. It detects a radio frequency signal in the air, typically a few microvolts, and amplifies it, up to a million times, to a few volts for the loudspeaker or headphones.
A kitchen radio in the background will be emitting a few tens of milliwatts of acoustic power, at a loudspeaker efficiency of about 10%.
A high quality loudspeaker will have an even lower efficiency, in order to provide a higher quality of sound.
Wiki User
∙ 14y agoALL the radio waves that flow out of the source carry ALL of the radio energy that the source generates.
You're the person who wants to catch those waves and get ahold of the information they carry ... whether it's the color of the light, the picture of the game, or the weather forecast. Your task is to figure out how to intercept ENOUGH of that energy to do what you need to do in order to strip that information out of it.
The farther you are from the source, the thinner all that energy is spread out, so the bigger collector you need.
Your energy collector at the receiving end is what's called your "antenna".
Wiki User
∙ 10y agoA radio transmitter is used to put information in the form of electric signals onto
electromagnetic waves, and then radiate those out to the world.
A radio receiver is used to collect electromagnetic waves, recover the information
they carry, and deliver it to electrical devices, like video monitors, teletypewriters,
motors, and earphones.
Virtually everything that goes on in both directions is electrical. So it's only natural
that if the radio transmitter or receiver needs some energy to do its job, we supply it
in the form of electrical energy.
Wiki User
∙ 14y agoRadiant energy. They are the first type of wave in the electromagnetic spectrum.
Wiki User
∙ 11y agoRadio wave Energy E=hc/r=hf= ev f/240Thz.
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When you turn on a radio what type of energy transformation takes place?
electrical/chemical to sounds(useful energy) and heat(wasted energy)
Where and when is the radio used?
the radio is used to entertain you.A radio is used to listen to broadcasts of things such as music and entertainment. Many different companies own radio stations and can use them for any type of entertainment they like
When radio is turned on electrical current flows through it what main type of energy is produced by the radio?
The electric power supplied to a radio is used to produce two types of energy: heat and sound. The sound is the useful part, and work is always continuing to find ways of producing less heat, because it only uses up electric power, and there are much better ways to keep our hands warm.
What is the energy transformation in a radio?
A radio receiver converts electrical energy into heat and sound energy.The electrical energy comes from the batteries in the radio or the wall-outlet that it'splugged into. The tiny tiny tiny bit of electrical energy from the current in the antennathat's caused by the radio waves that hit it is used to control the real energy in theradio, but doesn't directly add anything to it.If you've ever used a boy-scout "crystal set" radio, and remember how soft the soundis in the earphones, that's how much energy is actually drawn from the radio waves.Not much !
Could radio waves be used to cook and why?
Radio waves are used to cook in millions of kitchens every day. They're the carrier of the energy that fills the so-called "microwave" oven.
Why was the radio named as such?
The "radio" is named as such to reflect the type of energy used to cause the radio instrument to operate. That being "Radiant Energy."
What type of energy transformation does a radio signal have?
The radio signal itself, of course, is not an energy transformation - energy transformation means that energy is changed from one type to another. There is an energy transformation when the radio signal is created, and another one when it is absorbed.
Is a radio mechanical energy?
No. Radio waves are a type of electromagnetic waves.
What type of energy is in a radio?
It is electromagnetic radiation in the radio par of the spectrum.
What is the type of energy in a radio?
It is electromagnetic radiation in the radio par of the spectrum.
What type of energy comes from the radio?
SOUND!!
What type of radio waves energy have?
Radiant energy. They are the first type of wave in the electromagnetic spectrum.
What type of energy is being released when a radio is playing?
its kinetic energy ;)
What type of radiation is lowest energy?
radio wave
What type of energy is in a radio stereo?
well it is run on power so it is not energy
What type of transformation takes place when you turn on a radio?
The answer is sound energy to electrical energy!
What type of useful energy does a radio produce?
not a clue (y)
