New best story on Hacker News: Ask HN: What are some good resources to learn how electricity works?

Ask HN: What are some good resources to learn how electricity works?
450 by farleykr | 174 comments on Hacker News.
I've tried several times to understand the vocabulary and concepts of electricity - basic things like volts, amps, resistance - but I'm not having much success with self-led study. Can anyone recommend any good videos, books, courses, etc.? Thank you.