On Feb 9, 2010, at 8:00 AM, John Carmonne wrote:
OK so do you trust the multi votage, multi tip ones?
It's a simple enough circuit, and as long as you pay attention to tip
polarity, Id trust 'em ok, I guess.
And I assume you would buy the highest amp out put? Do the devices
adjust to the increased amperage?
Yes I'd buy the highest amperage.
No adaptation for amperage is necessary.
Think of electricity as a river. Voltage is how fast the water flow
is, amperage is how much water there is flowing by.
Your device is a water wheel running a generator.
It's a really imperfect metaphor but bear with me...it's how Mr Yee
the electronics teacher taught me this lo these many years ago in High
School...
If the river isn't flowing fast enough (low voltage), it won't turn.
If the river is flowing too fast (high voltage) it'll turn too fast
and possibly wreck itself.
If the river is too small (low amperage), even if it's moving the
right speed, it won't turn the water wheel, because not enough force
is being applied to the paddles.
If the river is too big (high amperage), the water wheel will work
just fine, because it'll only use the amount of water that fits in the
paddles...the rest of the river flows on by.
To a point you can connect a device to the correct voltage and a
higher amperage and everything will work just fine.
--
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group
Institutions do not have opinions, merely customs
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