I post a video of ohm's law elsewhere. As fundamental as that is, so is the notion of electrical and magnetic fields. Unfortunately these concepts are much harder to grasp. Engineers are forced to learn them and they quickly forget them after school is over 
. But they are key to understanding everything from how transformers work to how you get interference and leakage from one circuit to another. Even things like jitter have root causes in electric and magnetic fields!
This is a short but very well explained video on this topic:
. But they are key to understanding everything from how transformers work to how you get interference and leakage from one circuit to another. Even things like jitter have root causes in electric and magnetic fields!This is a short but very well explained video on this topic:
