Young scholars explain concepts of charge storage, how a capacitor works and how DRAM uses capacitors to store memory. They construct a capacitor and use a multimeter with capacitance meter capability to measure the stored charge in the...

Students study the concept of electricity, what an electric current is and its relationship between voltage and resistance.For this electrical lesson students solve problems using Ohm's law, and research alternative sources of electricity.

Compare the drift speed of conduction electrons in a current-carrying wire to the signal speed of changes in current. They also distinguish between DC and AC and describe how AC is converted to DC.