David Smith <sidic...@gmail.com> writes:

> Just about all computers here in the USA with the exception of (some)
> battery chargers use B-Plugs..  You can plug A-Plugs into B Sockets..
> It's a safe bet that all the dorm rooms will have at least one B-Plug,
> but it would be good to get a confirmation and whether or not there are
> any guarantees in regards to that...

The additional prong on a B plug is ground, which is mostly unnecessary
with US wiring for most devices.  It's common for US laptop power supplies
to have an A plug.

You can't be absolutely guaranteed to have a B plug available, so if you
have the choice and you're talking about a laptop and not something like a
hair drier, I would go with an A plug.  That being said, any building
whose electrical wiring has been built or rennovated in about the last
forty years probably has B sockets.

-- 
Russ Allbery (r...@debian.org)               <http://www.eyrie.org/~eagle/>
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