Primary & Secondary Coils, 1 Each

The United Scientific® Primary & Secondary Coils are an electromagnetic induction set with a 175-turn, 18 AWG primary and a secondary offering three windings of 500, 1000, and 1500 turns. Coils are wound on molded formers with shielded banana jacks, and a 19 mm plated iron core with a handle positions inside them. Physics teachers use the set for mutual induction and transformer turns-ratio experiments.