On Fri, Nov 28, 2008 at 12:43:41PM -0600, lee wrote: > On Thu, Nov 27, 2008 at 10:37:26PM -0500, Napoleon wrote: > > lee wrote: > >> > >> But how do know that there is voltage when you cannot measure it or > >> otherwise make evident that there is? As far as I understand it, you > >> cannot do that without current flowing. You can do it for water > >> pressure without water flowing, but I don't see how you could do it > >> for voltage without flow. > >> > > > > Actually, you can't do it for water without some water flowing, > > either. > > Ok, but once the measuring device shows the pressure, the water stops > flowing. Hm, ok, maybe you can design a voltmeter that shows the > voltage and stops the flow of current ...
A voltmeter has two connectors and shows the potential differences between them. This is unlike an Ampermeter that shows the current flowing through it. -- Tzafrir Cohen | [EMAIL PROTECTED] | VIM is http://tzafrir.org.il | | a Mutt's [EMAIL PROTECTED] | | best ICQ# 16849754 | | friend -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
