Learning Paths
Each learning path is one chapter: a guided route through a topic, one small course at a time. Pick a class to see its chapters in order.
Chapter 21Contains Standard content
Alternating Current
The socket at home gives a voltage that swings between plus and minus fifty times every second, and the whole country runs on it. Alternating current behaves differently from steady current in resistors, coils and capacitors. In this chapter you learn rms values, phasors, series LCR circuits and resonance, power and the power factor, and why the transformer lets power travel far. Python plots a voltage and the current it drives.
4 courses
