Alternating Current (6:48)
Concept of alternating current and EMF, with demonstration
Power in AC Circuits (9:15)
Determining the power dissipated by resistors in an AC circuit
Discussion of how a transformer works with AC circuits to step up or down the voltage, including a demonstration
Capacitors in AC Circuits (19:23)
Describing the charging and discharging of a capacitor when connected to an AC source, and the consequences for the current in the circuit.
Self inductance as the induced EMF in a coil from changing the current in the same coil. Also the phenomenon of back EMF and how to calculate the self inductance from the magnetic flux passing through the coil.