Firstly, I'm gonna have to ask the same question as Becky: How?
Secondly, as Chomp said, exposed wires are fun. But the current flowing to charge your mouse should be minimal, so should be safe.

Thirdly, it should be fine, just don't use hugely thick wire.
(PenguinOfDeath is Scottish, and most likely angry, Mon 21 Sep 2009, 10:20, 2 replies, latest was 16 years ago)

?!
Surely a slightly thicker wire is preferable - I'm sure you're right in that it's only a small charge flowing to the mouse, but if the resistance of the wire is inversely proportional to its cross-sectional area, surely a slightly thicker wire will heat up less and therefore be less of a hazard?
(LongJohnBaldry, Mon 21 Sep 2009, 10:28, Reply)

But,
Will the thicker wire not present a greater resistance though?
(PenguinOfDeath is Scottish, and most likely angry, Mon 21 Sep 2009, 10:36, Reply)

No,
I know it can seem counter-intuitive, but as I said, the resistance is inversely proportional to its cross-sectional area, so as the wire gets thicker, the resistance goes down.

Think about it like a given volume of water flowing through a pipe - the same amount of water would meet less physical resistance flowing through a fatter pipe than through a narrower one. It's a similar situation with the flow of electrons.
(LongJohnBaldry, Mon 21 Sep 2009, 10:44, Reply)

Damn it!
I'm losing my physics knowledge. I really should know these things.
(PenguinOfDeath is Scottish, and most likely angry, Mon 21 Sep 2009, 10:46, Reply)

:)
www.torrentreactor.net/torrents/899998/Physics-For-Dummies
( Noeli overtheshoulderboulderholderthingstraplatchboobs, Mon 21 Sep 2009, 10:48, Reply)

Yeah, use the thinnest possible wire you can find.
If you can get it to glow hot, that means it's working better.

Edit: balls.
( Noeli overtheshoulderboulderholderthingstraplatchboobs, Mon 21 Sep 2009, 10:28, Reply)

I would like it remembered
That I didn't say use the thinnest wire, just not overly thick wire.
(PenguinOfDeath is Scottish, and most likely angry, Mon 21 Sep 2009, 10:36, Reply)

I would like it remembered
that I was just buggering about.
( Noeli overtheshoulderboulderholderthingstraplatchboobs, Mon 21 Sep 2009, 10:45, Reply)