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> I'm afraid not, the magnetic field might be a bit too strong. I was always curious about that. The ability to hold extreme electrical currents means supercon

> I'm afraid not, the magnetic field might be a bit too strong. I was always curious about that. The ability to hold extreme electrical currents means superconductors also produce extreme magnetic fields, which I presume will happily induce induction currents in whatever conductive material is nearby. If that material is non-superconductive, than it will start sapping the electromagnetic energy from said superconductor as the eddy currents get resisted, getting hot in the process. What I guess I'm saying is that I'm not sure how you're supposed to build a superconductive grid or motor without also turning everything around it into an induction stove when you turn it on.

retrac 3y ago
> than it will start sapping the electromagnetic energy from said superconductor Electromagnetic induction involves the inductor, too. With a conventional electromagnet in a changing field, there is a current (an opposite current, in a sense) induced in the electromagnet's winding which is how the energy transfer occurs. The coil's apparent resistance increases as it moves through the field. But superconductors have no resistance :) Since a superconductor rejects induction from outside magnetic fields (Meissner effect) they do not inductively couple in the same way. Once energized and then looped, a superconducting magnet behaves more like a permanent magnet. With regard to use in power storage, strong magnets of any kind are rather inconvenient (even dangerous) around anything magnetic.