On 08/02/2018 12:08 PM, wrote:

[snip]

If this was a DC supply, like our two batteries in series, are you
still going to say the current suddenly changed directions at the
point where they connect?

Such a power supply (like 2 batteries in series, with the point between
them grounded) IS described as having two outputs (for example +12V and
-12V).

If the supply included a switch that exchanged the outputs periodically,
you'd have phase.

--
Mark Lloyd
http://notstupid.us/

"Many demons are in woods, in waters, in wildernesses, and in dark
poolly places ready to hurt...people." [Martin Luther]