Can a superconductor "repel" an electromagnet due to the Meissner effect?

[Dante Meira]

A superconductor with little or no magnetic field within it is said to be in the Meissner state. The Meissner state breaks down when the applied magnetic field is too strong.

But what happens if an electromagnet that is at first "turned off" is suddenly "turned on", in the close proximity of a superconductor, with a magnetic field of strength bellow the critical value Hc (in type-I superconductors) or Hc1 (in type-II superconductors)? Will the electromagnet be "repealed" by the superconductor because of Meissner effect? If the superconductor is mechanically fixed, will the electromagnet that was suddenly turned on "jump away" from the superconductor?

 

[f95toli]

Yes, that is what I would expect.
How much it would "jump" would obviously depend on the strength of the magnet and the geometry. I've never actually tried what you are proposing, but I've spent a fair amount of time playing with RE magnets and high-Tc. in those cases the magnet has a tendency to just "slide off" the the field rather than jump.

 

[phyzguy]

This site on hyperphysics explains the effect, and has some pictures of levitated magnets. My understanding is that if a magnet is sitting on a superconductor and the temperature drops below Tc, the magnetic field will be expelled, and the magnet will in fact "jump up". I'm not sure how fast this will happen.