Is it possible to transmitt the Electric power without wires?

Question

There is article in EFY magazine on page no 20 of Dec 2006. It should be possible. The only reason why we are not using is NOT HAVING KNOWLEDGE and we have to discover the thing. Otherwise in the 30-40s if somebody asks same question about TELECOM that time also the ans would be same we are NOT HAVING KNOWLEDGE.

Answer 1

Yes, electric power can travel without wires.

It is called arcing. And you are correct that it is a matter of not knowing how to do it.

Electricity arcs only at very high voltages, and typically not in a controllable manner needed for power transmission.

Used today in arc welding, igniting fluorescent bulbs.

But at least until technology can change what we know about the principles of electricity and arcing, there would seem to be a large inherent instability in a wireless power transmission system. That and we have a system in place which allows power to be transmitted reliably at relatively low voltages, especially since air is non-conductive. I think you would agree that it would be better for all of us if the air around us remained less conductive than copper or aluminum.

Now in theory, if you could change the properties of air in a small space and make it conductive, you could in theory make a "wire" out of air. But even still, you would want to encapsulate that airspace for the sake of public safety, and again you have a wire, just of air, not of copper.

You would have to do it a manner which would be as cheap and as safe as the current power grid structure , or, even if you could do it, it would have no practical application, save for possibly really remote locations, or instances where cost and risk are acceptable.

Answer 2

Electric power can indeed be transmitted without wires, though not substantial amounts. However, the process is so inefficient that it's not worth bothering with, and it interferes with other electronic equipment that's far more valuable to us. It's simply not that big an issue; wires work just fine.

The subject has been studied for many years; there aren't any secrets. The last big effort had to do with a scheme for producing electrical energy with solar cells orbiting the earth and transferring the power down via microwaves. But such a scheme would compromise the communications satellites up there, and they're worth lots more than someone's electric bill.

Answer 3

yes we not only can but we do on a daily basis. maybe not the 115 vac and 220vac to homes from the power company, but electical energy from powerful radio transmitters fills the air with electrical energy constantly, and we could harness it any time we wanted and do many useful things with it instead of just lamenting its bad effects on those exposed to it., and even the high voltage high tension lines way above the earth on huge towers do infact transmit thier electrical power outside the lines and cause the damage to humans that i mentioned. harnessing this energy could power homes etc. i have used it to power radios and i have thought many times of powering other things with it. the possibilities are virtually endless, and its there unused causing problems anyway why not use it. transmitting more into the air purposly could cause more serious problems to peoples health which industry has been largly unconcerned about in the past, but i see no reason not to use whats already there. simply pick it out of the air rectify it store it and use it as you wish its free, and its everywhere on the earth.ive even developed theories on how to store and use it but dont want to give it all up incase i decide to pattent my ideas and try to end my relative poverty, hahaha bye the way it was earlier than the forties but your example is valid, all the same. before telecomunications was possible without wires people would have laughed at the suggestion. your eror is not lack of kinowledge just age. i was around through it all, hahaha trnasmitting more 60 hertz poser would also make all radios buzz so loud you couldnt hear the intelligence in the signal once recitfied at your reciever.

Answer 4

This kind of depends on how you define the one wire. I can take a single wire and run it from the pos. pole on a battery over to the neg. pole, current will flow. If I shoot a model rocket with a single wire attached into a thunder cloud, current will flow. The problem comes in when you want to actually place a load into the circuit and make that current do some work. There HAS to be a return line, or ground, otherwise the circuit is open and no current can flow.

Answer 5

Electricity without wires? Nirvana!

But that’s exactly what eCoupled will promise when it debuts just a little over a week from now at the 2007 International Consumer Electronics Show (CES) in Las Vegas. eCoupled technology is powering a new ecosystem of consumer devices that can be powered and charged without wires. This is a joint venture of Fulton Innovation, Visteon, Motorola, Herman Miller and Mobility Electronics.

The new technology works by using inductive coupling, a method by which energy is transferred from one device to another through a shared magnetic field. It’s an old idea from Michael Faraday and Nikola Tesla, considered to be the fathers of consumer electricity, but perfected in the present day by the eCoupled consortium.

The clever trick to perfect the technology is a “resonance-seeking circuitry that dynamically seeks and optimizes power transfer under multiple, varying load conditions and spatial configurations.”

Whatever. For you and I, it only means that a truly wireless world is upon us. The day when we can transmit power and data without wires is at hand.

Answer 6

Most assuredly YES. EMF (electric power) is converted to directed microwaves (possibly laser) at point A, collected by collector at point B, then converted back to usable power. Unfortunatey the efficiency of transmission is only in the 10-20% range, making it a neat parlor trick.

Answer 7

It happens all the time. Electric power is transmitted through thunderstorms everyday on this planet. Also wood and water are great conductors.

You asked the question, I just gave you the answer.

Answer 8

Its not feasible uptill now though much research is going on....check this article on MIT site titled - "Wireless energy could power consumer, industrial electronics"

http://web.mit.edu/newsoffice/2006/wireless.html

Still some years to go before something concrete comes out

Answer 9

electric current transmission requires a medium .it is related to the movement of electrons.lightning is transmitted through water particle and air and travels to the ground through a shortest route.transmission of current generated by men requires wire.

Answer 10

Electricity can be easily transmitted w/o wires using an electrolyte (a liquid medium with +ve and -ve ions) as a medium.