Sure, current can be present without voltage (in a short circuit) just
as easily as voltage can be present without current (in an open
circuit). But what I meant was that the value of voltage doesn't
determine heating, nor does the value of current. It's the value of
power that does.

Roy Lewallen, W7EL

Bill Turner wrote:
On Tue, 19 Oct 2004 01:39:57 -0700, Roy Lewallen wrote:


Voltage and current, by themselves, don't do any heating.


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I don't follow you on this. Voltage can be present without any current,
but current can only flow if voltage is present, so what is meant by
"current by itself"?

--
Bill W6WRT