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.
The 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.
ALL 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".
A 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.
Radiant energy. They are the first type of wave in the electromagnetic spectrum.
Radio wave Energy E=hc/r=hf= ev f/240Thz.
electrical/chemical to sounds(useful energy) and heat(wasted energy)
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
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.
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 !
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.
The "radio" is named as such to reflect the type of energy used to cause the radio instrument to operate. That being "Radiant Energy."
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.
No. Radio waves are a type of electromagnetic waves.
It is electromagnetic radiation in the radio par of the spectrum.
It is electromagnetic radiation in the radio par of the spectrum.
SOUND!!
Radiant energy. They are the first type of wave in the electromagnetic spectrum.
its kinetic energy ;)
radio wave
well it is run on power so it is not energy
The answer is sound energy to electrical energy!
not a clue (y)