Visitors can turn the Cranks to operate two Generators. One rotates a Magnet inside a Coil; the other rotates a Coil between the Poles of a Magnet. Visitors can see that both Generators work, and that it is a changing Magnetic Field in a Coil that induces Electricity.
Visitors can choose one of three Secondary Coils to put into the Iron Core of a Transformer. Each outputs a different output Voltage to a Light Bulb. Visitor can see that how the Turns ratio of the Coils affect the output voltage of a Transformer.
Visitors compare two identical Power Lines, which carry power to a Light Bulb. One operates at high voltage with Transformers and gives a bright light and cool Power Lines. The other operates at low voltage. Its Power Lines glow red hot and the Light Bulb is not bright, due to power losses. This explains why Power Transmission Lines operate at high voltages.
Visitors operate an AC Circuit, which is monitored by a Double-Trace Oscilloscope. They can choose a Resistive Circuit, a RC Circuit or an LC Circuit and study the Phase Shift of Inductors and Capacitors.
Visitors can vary the Capacitance of a Variable Capacitor in a Series RLC Circuit, and find a position where the Voltage across the Resistor has the largest Amplitude with the Oscilloscope. At this position the circuit is in Resonance.
Visitors can control the Brightness of a Light Bulb by using a standard household Dimmer with Triac. On an Oscilloscope, visitors can see how the AC Voltage across the Light Bulb is affected by the Dimmer with Triac.