With this you could get an MRI at your annual checkup. You could diagnose all number of diseases like that, not to mention 95% of cancers. Each year your scan is automatically compared to the previous year, and any sudden changes in morphology can be biopsied. The learning would be revolutionary for medical science as well- right now we have so little data on what kinds of benign growths people have that our best method for figuring out if a mass is a problem is asking if there are any other symptoms. Not to mention entirely new kinds of medical devices would be possible, eg using SQUIDs.
Ground-imaging MRI would also be revolutionized. Archeology, paleontology, geology, mapping resources and finding minerals would experience a quantum leap. You would be able to drive a car through the desert and spot fossils or faults or mineral signatures.
Space travel would become essentially free with the use of launch loops. Which would also make long-distance travel incredibly cheap and practically pollution-free. You would need electricity alone to reach low earth orbit, or to accelerate planes to multiples of the speed of sound.
Grid-level storage, peaker plants and load-following would become nearly obsolete. Superconducting catenaries would connect every nation on earth. Normally plants have to turn off when everyone goes to sleep; now factories in China can be powered by US fission. Canadian homes could be kept warm by Australian solar. HVDC interlinks would be obsolete. We might eventually transition away from AC power entirely.
CPUs could be anywhere from 10% to 50% more efficient. GPUs even more so. Fires, particularly house fires would become less common as wires simply stop conducting when they are overloaded.
