On 9/10/19 11:35 AM, Professor Nutley wrote:

[snip]

The ubiquitous AA alkaline battery is two phase as well.
If you check the battery voltage, you'll have +1.5 volts.
If you reverse the leads on a voltmeter, you'll have a negative -1.5
volt phase.

"one or the other" is not the same as 2-phase.

--
106 days until the winter celebration (Wed, Dec 25, 2019 12:00:00 AM for
1 day).

Mark Lloyd
http://notstupid.us/

"Do not fear to be eccentric in opinion, for every opinion now accepted
was once eccentric." -- Bertrand Russel