Superconductors are abstracts that accept absolutely aught attrition and absolute conductance, because they can accept V=0 and I≠0. This additionally agency there is no joule heating, or in added words no amusement of electrical energy. Therefore, if superconductive wire is fabricated into a bankrupt loop, accepted will accumulate abounding about the bend forever. Similarly, if a ability band were fabricated of a superconductor, there would be no manual losses. Unfortunately, superconductors are about never acclimated for ability lines, because they crave aqueous nitrogen cooling, and are big-ticket and delicate. They are, however, frequently acclimated in NMR/MRI and a few added applications.
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