lee wrote:
On Fri, Nov 28, 2008 at 04:48:59PM -0500, Napoleon wrote:lee wrote:Incorrect. Voltage is strictly an excess or shortage of electrons. Current flow is not necessary for voltage to exist.On Fri, Nov 28, 2008 at 02:43:28PM -0500, Napoleon wrote:lee wrote:Is it even possible to measure a mere potential?Of course. That's what voltage is.Hm, true, voltage is impossible without current flowing because of how voltage is defined. No current <--> no voltage, and voltage is something that doesn't exist. I never thought of it like that before.You really do need to take some electric theory courses.http://en.wikipedia.org/wiki/Volt: "The volt is defined as the potential difference across a conductor when a current of one ampere dissipates one watt of power." Then the above definition is incorrect.
I'm no EE, and I may be wrong about this, but I think you're confusing "voltage" (difference in potential) with "volt" (a specific amount of difference in potential).
-- Kent