I saw a movie: when a subtance was cooled down by liquid nitrogen and then the magnet is floting over it.
2006-07-24 21:36:25 · 4 answers · asked by KNWin 1 in Science & Mathematics ➔ Physics
you need to put an electric current in the superconductor to create the magnetic field that will keep the magnet afloat. (but superconductors have good properties for that kind of things)
2006-07-24 21:49:46 · answer #1 · answered by Anonymous · 0⤊ 0⤋
we have a superconductor (in a ring)
and a magnet floating over it
as we know, a moving electrical charge creates a magnetic field ..
so ... the magnet is floating on ...
two guesses ?
anti-gravity > unproven and not indicated
magnetic force > fills all observations except for a minor question of charge strength that may be a function of superconductivity.
2006-07-25 04:49:48 · answer #2 · answered by PlayTOE- 3 · 0⤊ 0⤋
A superconductor, as its name implies, has no resistance. therefore it cannot hold any magnetic flux through it. Any flux would be going between the superconductor and the magnet. Because of this flux, the magnet cannot touch the super conductor, therefore it levitates. The stronger the magnet, the higher the levitation.
2006-07-25 05:42:21 · answer #3 · answered by Danushka B 2 · 0⤊ 0⤋
read more phisic
2006-07-25 04:41:13 · answer #4 · answered by sia 2 · 0⤊ 0⤋