Used to study electromagnetic induction & transformer principles. The outer coil is about 50 mm tall and 32 mm in diameter. The inner coil is about 58 mm tall and 19 mm in diameter. The removable steel core with handle is 10 mm in diameter and 67 mm tall. All coils are wrapped with magnet wire with insulated binding posts as connectors. (New Version. Smaller size. Includes tutorial, instructions and suggested experiments.)
Inner coil has about 460 turns of wire. Outer coil has about 290 turns of wire. Users may modify the inner and outer coil wires in order to test different number of wire loops and different wire diameters.