Randall R Schulz wrote:
On Sunday 17 February 2008 19:58, Aaron Kulkis wrote:
Randall R Schulz wrote:
...
However, the point is that by squaring the primitive (and time-varying) quantity first (voltage or current, but not power which depends on both current and voltage)) then taking the average over a cycle and then taking the square root of that value, you'll get the average power.
This is clearly incorrect. The result of applying the RMS algorithm to voltage is a value with units of voltage. This value squared and divided by the resistance into which the voltage drives the current resulting in some power dissipation gives that power.
... The units of RMS voltage is the volt, not volt^2.
True.
But another correction (to one of your earlier statements) is required.
On Sunday 17 February 2008 19:56, Aaron Kulkis wrote:
... RMS is just as statistical method, which is useful for making sense of any time-variant function.
...
While RMS is the name for a statistical technique, as it's used it circuit analysis, it's an analytical technique.
Using the same statistical technique. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org