Bob Eager wrote:
On Wed, 5 Oct 2005 08:53:23 UTC, "blackboab"
wrote:


AC current changes direction 50 times a second


No, it doesn't.


I thought it did actually as Electrons flow from -ve to +ve IIRC, or the
current flows from +ve to -ve in conventional notation.

The live is always energised though with either a +ve or -ve potential
wrt the neutral.

Alex.