What would it take to make a power loop, that couldn't necessarily power anything, but could loop?

 Like if you had a power source connected to 2 wire's and then you connected those 2 wires to a switch and then back to the original wire's. And then you'd switch the power from the original power source, to itself. What would it take to make a power loop that wouldn't power anything essentially, but would still run in a loop?

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lemonie7 years ago
Superconducting electromagnets are just this, but if you take energy out you reduced stored energy in the loop.
They're charged through an inductive process, like transformer coils are energised.
They have graphite blocks wired across the loop, through which no current flows (normally) because the resistance is too high. But if the conductor warms up too much and starts to conduct, the energy gets dumped into the graphite and boils-off the helium coolant in a big "whoosh". They're there to stop the superconductor from frying.
They can be made, but no, you can't tap for "free energy"

orksecurity7 years ago
If you're asking whether one could induce a current in a loop and then have the current continue running without a power source: In a superconductor, yes. In any other kind of conductor, no; resistance almost immediately dissipates the energy as heat.

(Freshman physics should have covered this in more than adequate detail...?)

BTW, note that there is no "power" in the superconducting current loop, since no work is being done.

gabe94 (author)  orksecurity7 years ago
alright, so lets say if there was a way too draw power from the super conducting current without taking any away, then it would almost a never ending power source?

BTW, yes i agree that Freshman Physic's Should've taught me that, but i didn't exactly have a good Teacher, we mostly did experiments and none having to do with this
"Mu". You've just un-asked your own question. There is no way to draw power without reducing the current. Not in this universe.

If pigs had wings, they'd be pigeons.
gabe94 (author)  orksecurity7 years ago
 actually, i have a theory that could prove that you can draw power without reducing it, but thats not the point. i just want to know that if there was a way to draw power without reducing the current, could it be done with a superconductor?
You're proposing breaking existing electrodynamics and thermodynamics. As a result, it's impossible to give any valid answer to what might or might not be possible except by working through all the implications of your new theory. And even then the question remains of whether the theory is actually a successful model of this universe -- which, given what it's up against, is massively unlikely.

The only possible answer, thus, is "Mu." What you've asked is simply not a well-formed question. The pig doesn't have wings.

Seriously: You say you're an MIT student. If so, you have HUGE amounts of world-class resource available to you, up to and including Nobel laureates who like teaching undergrads. If you won't take my word for it, I highly recommend you ask on campus; you will get greater expertise there than you will here.

(My own EE degree is many years ago; my thermo and quantum a bit longer, and my classical physics a bit longer than that.)
gabe94 (author)  orksecurity7 years ago
 Alright, since it seem's to be getting bothersome, this is my last question:

Is it possible to Oscillate a Super Conductor? Switching Polarity, Turning on and off, or both. 
No, you can't oscillate the current.
gabe94 (author)  steveastrouk7 years ago
 can you use it as an electro magnet?
Kind of, the giant high tesla magnets in MRI scanners use superconductors, but ANY attempt to extract energy from the field has to come from somewhere, so it manifests as resistance in the superconducting magnet.
gabe94 (author)  steveastrouk7 years ago
 what does that mean? are you saying that it could attract metal for instance or be used in a transformer?
Superconductors can't carry AC. They can attract metal.
gabe94 (author)  steveastrouk7 years ago
 alright, thank you for all of your help
Apologies if I was a bit rough on you. I figured that if you're at the 'Tute, direct and thorough would suit your needs better than either verbose or simplified.
(See also http://en.wikipedia.org/wiki/Not_even_wrong)
Re-design7 years ago
That would be called a "short" and would either drain the battery quickly, melt the wire or burn out the power supply.  It's not a good thing to do.  You must have some resistance in the circuit (loop) or you will burn up the power supply.
gabe94 (author)  Re-design7 years ago
 then what would it take to be able to loop power? say if i had the resistance there to keep it from burning up, what would it take other than the resistance?
Read some of these.  You need to get a grasp of basic electronics so you can answer some of your own questions.

Good luck.

gabe94 (author)  Re-design7 years ago
 I have farther than a grasp of basic electronic's, i'm taking courses in electrical engineering and computer science at MIT. I just am wondering if there is anyone with more experience than me that might know if it would be theoretically or physically possible

Well, if your resistance was a coil of wire around a steel bolt, you'd have an electromagnet, but technically it would be an unbroken wire between the battery terminals.