A ferromagnetic thin-film based array of directed magnetic field generating structures having a plurality of toroidally shaped layer stacks each with a pair of ferromagnetic material layers separated by an intermediate layer of nonmagnetic material. Electrical connections are made to opposite sides thereof. A serpentine first side electrical conductor is folded back so as to have parallel branches and together zigzag to cross over each stack on one side thereof. A serpentine second side electrical conductor, also folded back so as to have parallel branches, can be further provided with these branches together zigzagging to cross each stack on an opposite side thereof. These first and second side electrical conductors can be electrically joined to form an array electrical conductor.