title: Optimum spacing for a pair of thick circular coils of square section.
abstract: Curves are given for the magnetic field along the axis between two circular coils of square section traversed by the same current. These curves relate the field variations, the length in which the field is within a certain allowed variation, the coil thicknesses, and their separation.
authors.affiliation: Escuela de Fisica, Universidad Nacional de San Luis, 5700 San Luis, Argentina.
authors.forename: P A
authors.initials: PA
authors.lastname: Colavita
authors.forename: V A
authors.initials: VA
authors.lastname: Bustos