Can energy be transmitted through electromagnetic waves?

Question

if em waves can carry information etc...cant it carry energy so a person in mars for eg. can upload energy to charge the batteries?

Answer 1

Yes, energy can be transmitted through little "energy packets" known as photons.

If you were wondering, the equation for the amount of energy transmitted is
E=hv
Where h = Planck's constant, 6.63 x 10^34 J-s/m
And v = wavelength of the electromagnetic wave.

As for the second part, well, electromagnetic radiation contains energy and therefore can be absorbed such as in infrared lamps, which are used in kitchens to heat ovens and such.

Answer 2

All EM radiation, ie light, carry energy proportional to the frequency of the light being transmitted/recieved. We send signals by augmenting "EM waves" to our purposes. A digital signal is just multiple frequencies being used in much the same way as a computer uses data. 1s and 0s. Either it is on or off. The frequency of the EM waves used in communication is fairly low, relative to visible light. It is the reason you will not get a sun burn from being too near a cell phone too long. Another thing to concider is the intensity of the radiation. Again, for communication purposes, this is fairly small.
In short, no, this is not a viable way to get astronauts power on mars. Solar power, however, that is EM waves in the visible light spectrum, is.

Answer 3

Yes it can. Nikola Tesla developed a method of broadcasting power using super high frequency electricity.

But essentially - any current can generate an electromagnetic wave.

Answer 4

potential is potential and its varieties are of very restricted magnitude. In case of mechanical media(like water floor, substances and so on) sound potential propagates interior the style of mechanical wave/vibrations. In Electromagnetic waves mild potential is transmitted interior the style of em waves. So that is potential that transmitts from one aspect to different in time both in waves or mechanical style(like merchandise transferring from one position to different in non wave format- like a ball thrown). potential manifests right into a variety of of varieties and wave style is between the manifestations of potential transmission. Its no longer philosophy yet truth.

Answer 5

Yes,

If you look at most rechargeable toothbrushes they used a sealed motor system, and use magnetic waves to charge the brush.

Answer 6

Yes. Its called induction.

Answer 7

yes dear