Bob Mannix wrote:
"AlexW" wrote in message
...

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.


You fell into his little trap! It changes direction 100 times per second,
having a burst in both directions 50 times a second.



Trap?

It still changes 50 times second though for the UK supply, the limits
would be a minimum of 99 to 101 times. AC current could actually change
at any frequency.