Re: OT: volt and current (ALSA sound recording frustration)
On Fri, Nov 28, 2008 at 13:10:32 -0600, lee wrote:
> On Fri, Nov 28, 2008 at 06:59:06PM +0000, Tzafrir Cohen wrote:
> > A voltmeter has two connectors and shows the potential differences
> > between them.
> > This is unlike an Ampermeter that shows the current flowing through it.
> If you have a multimeter that can measure voltage or current, both
> modes are basically the same. The difference is only in where most of
> the current flows.
> Is it even possible to measure a mere potential?
Perform a series of measurements using voltmeters with increasing
resistance, up to the technically feasible limit. Record your
observations and check if is possible to extrapolate them to infinite
resistance. Define the ideal measurement as the limiting case for a
(hypothetical) voltmeter with infinite resistance.
Regards, | http://users.icfo.es/Florian.Kulzer