Persisten current measured
Posted: Mon Oct 12, 2009 5:18 pm
Hmmm, interesting.
http://www.sciencedaily.com/releases/20 ... 071349.htm
http://www.sciencedaily.com/releases/20 ... 071349.htm
University have made the first definitive measurements of “persistent current,” a small but perpetual electric current that flows naturally through tiny rings of metal wire even without an external power source.