With a charged particle, one of these devices makes up a cyon (“SY-on”), which is a physical realization of an anyon (“EN-ee-on”). Stacked metal discs with holes for water to flow through make up a type of these devices named after Francis Bitter that is used in a lab at Florida State University. These devices are not superconductors, but hadronic calorimeters are surrounded by a niobium-titanium one of these (-5[1])devices in a namesake particle detector at the LHC. (10[1])Divergence-free vector fields are named for these (10[2])devices. (10[10])One of these (10[1])devices (10[4])is surrounded (-5[1])by toroidal and poloidal coils (10[1])in tokamaks. The inductance of (-5[1])these devices is the product of mu naught, the number of turns (10[1])squared, and (10[1])cross-sectional (-5[1])area, all divided by current. For 10 points, name these devices that produce uniform magnetic fields and that consist of long helical coils of wire. ■END■ (10[2]0[1])