This video goes a bit further into the analogy, with parallel and series circuits etc: https://www.youtube.com/watch?v=7_7NO2Np5-s https://www.youtube.com/watch

This video goes a bit further into the analogy, with parallel and series circuits etc: https://www.youtube.com/watch?v=7_7NO2Np5-s https://www.youtube.com/watch?v=7_7NO2Np5-s