5E20  Electrolysis
            .10 Electrolysis
5E30  Plating
            .20 Electroplating
            .30 Pickle Frying
5E40  Cells and Batteries
            .02 Static vs. Current Electricity
            .10 Battery Effect
            .75 Internal Resistance of Batteries
5E50  Thermoelectricity
            .10 Thermocouple
            .30 Thermoelectric Magnet
            .60 Thermoelectric Heat Pump
5E60  Piezoelectricity
            .20 Piezoelectric Sparker