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.
No, that is the definition of a VOLT, which is the measurement unit of VOLTAGE.
And you really do need to take some electrical theory courses. I'm sure it hasn't changed much since my EE courses about 35 years ago.