Wrong?

studiot

Joined Nov 9, 2007
4,998
Tesla thank you for clarifying your point, it is a good one and another illustration of my comment about energy interchange.
 

steinar96

Joined Apr 18, 2009
239
Consider a car, it won't move without some force (either the engine or external) being applied to it. Once it has started moving (assuming no friction anywhere) it can move indefinitely in the direction it's going.

The same thing applies to current. You need voltage to get the current flowing but as witnessed in superconductors current will flow without voltage when the resistance drops down to practically zero.
 

Wendy

Joined Mar 24, 2008
23,415
You are talking definitions. Humans are very interested in such, it helps us quantize events. In the scheme of things though, it is a human invention. Things take as long as they take, according to their natures. We need the definitions so we can describe them, but the description is not the item. Processes occur whether we observe them or not, though there is a POV that might argue this.

Time started as days, and lunar cycles. But that didn't work with seasons very well, so they added solar cycles, and have kept polishing. We now use vibrations of atoms in atomic clocks. All of this is for humans, so we can describe a unit that is relative to location and observer. Time itself existed before there was life, and will exist after we are gone (again, philosophy will debate this). I'm not a philosopher, don't have time for it.

So far we have a 50/50 split more or less. Some folks think current can exist without voltage, some don't.
 
Last edited:

ShockBoy

Joined Oct 27, 2009
186
Processes occur whether we observe them or not, though there is a POV that might argue this.
POV...Person of Virtue?.....Pair of Vultures?.....Point of Vomit?.....Pi over Velocity?.....Please open Vault?.....Plenty of Vinegar?.....Positive operational Voltage?..... What is POV?
 
Last edited:
Top