A tool to study electromagnetic induction and explain how the transformer works.
The primary winding is made of enameled copper wire with large diameter and very low resistance (about 0.5 Ohm).
The secondary coil is coiled with a fine enameled wire with resistance 100 ohms.
Each winding has two 4 mm sockets.
Dimensions: 21 x 15 x 23 cm. 
