2 ms·

Here is an entertaining take on some related questions, going into the history of how our modern ground systems evolved: http://amasci.com/amateur/whygnd.html

• yesenadam 7y ago
  Bill Beaty's site has a load of great articles on electricity (and much else), linked to here: http://amasci.com/elect/elefaq.html http://amasci.com/elect/elefaq.html Also misconceptions about electricity taught in school: http://amasci.com/miscon/elect.html http://amasci.com/miscon/elect.html Or pages on generally believed science myths: http://amasci.com/miscon/miscon.html http://amasci.com/miscon/miscon.html How transistors really work: http://amasci.com/amateur/transis.html http://amasci.com/amateur/transis.html How capacitors really work: http://amasci.com/emotor/cap1.html http://amasci.com/emotor/cap1.html There's loads more great stuff. He's a pleasure to read - a guy who thinks for himself, and experiments - tries things out for himself.