Re: Electric current for same output: 110V vs 240V


"Stephen Cowell" <scowell@xxxxxxxxxxxxx> wrote in message
news:c3Gdl.10841$W06.2102@xxxxxxxxxxxxxxxxxxxxxxx

"Lawrence Logic" <mr-NotThisBit-logic@xxxxxxxxx> wrote in message
news:8MAdl.13042$cu.7083@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

"Stephen Cowell" <scowell@xxxxxxxxxxxxx> wrote in message
news:o9ldl.2464$%54.1546@xxxxxxxxxxxxxxxxxxxxxxx

"Lawrence Logic" <mr-NotThisBit-logic@xxxxxxxxx> wrote
Actually, I specifically mentioned power output.

No, you didn't. You only mentioned watts, not whether it
was consumption or production. 'Ratings' apply to both.
My answer still holds.


Indeed, but we're not sure exactly what's being held. I mentioned a 50W
amplifier. It's quite apparent that I'm talking about rated power output
by virtue of my post being directed toward a guitar amplifier newsgroup,
and guitar amplifiers being referred to by their rated power output.

Only if you refer to the title of the post, 'same output'...
this, indeed, does point to 'watts' as 'output'. OTOH,
'electric current' definitely refers to consumption from
the line. There was ambiguity... but my answer was
clear. It holds for both cases... watts in or out doesn't
change. When you move the voltage selector, you should
change the fuse.


Has the penny finally dropped? That was my question in the first place. To
paraphrase, is the drawn current roughly half to produce the same output in
the event that the input voltage is roughly double? You have indeed
answered my question, and I sincerely thank you for that.

In reference to the post that I'm replying to, you've said "'electric
current' definitely refers to consumption from the line. There was
ambiguity". My question specifically related to the fact that the current
drawn from the line should vary in indirect proportion with the change in
voltage in order to produce the same output power. I was merely asking for
verification of my assumption, so it's unclear to me where the ambiguity
lay.

As for the voltage selector, I'm staying put here in sunny Queensland
(pissistently raining as I type). Therefore, I won't be adjusting the
voltage selector at any time in the near future and won't require a higher
rated fuse. Your advice was sound, however, and I thank you again for
offering your assistance.

I said that Dave was a goose when I totally misread his reply, I apologised
for my indiscretion, and he duly accepted. It's possible that I'm missing
something here with your reply too, but I can't for the life of me see
whatever the hell it is. Please enlighten me.

--
Lawrence
"This Warner fellow. It's the first six letters of his surname that worry
me!" - Michael Slater - 11 January 2009


.

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