Primary & Secondary Coils

For exploring the concept of electromagnetic induction. Comprises two coils – primary coil wound from thicker gauge enameled copper wire with lesser number of turns; and secondary coil wound from thinner gauge, fine enameled copper wire with more number of turns. Both coils wound on a insulated plastic former and fitted with 4mm sockets. Primary slides into secondary for electromagnetic coupling. Includes soft iron cylindrical core that slides into primary.