Primary and Secondary Coil
The apparatus demonstrates the principle of Electromagnetic Induction and helps explain the concept of a transformer. Primary and Secondary coil consist of coils mounted on plastic spools, with 2 binding posts on each coil. You can slide the primary coil inside the secondary coil. Also includes a soft iron core for induction experiments. Primary coil has 480 turns while secondary coil has 3800 turns. Requires a galvanometer and bar magnets, not supplied with apparatus.