From: sno@opelc.com   
      
   When dealing with true sine wave...the equivalent dc voltage is peak ac   
   voltage times .707 (not sure of the number, is what I remember) has been   
   years since I studied and used these formulas..do not remember if normal   
   ac voltmeter reads average or the equivalent voltage..you are correct is   
   more complicated if voltage/current varies...I spent years teaching   
   basic and advanced electronic...which does not mean much..since was many   
   years ago.....   
      
   have fun....sno   
      
      
   On 1/25/2012 1:10 AM, Mho wrote:   
   > Dealing with AC or irregular waveforms gets more complex than simple   
   > Ohm's Law.   
   >   
   > What if the current and voltage are not present at the same time? LOL   
   >   
   > I spent 35 years in legal metrology.   
   >   
   >   
   > --------------   
   > "sno" wrote in message   
   > news:4f1f8e17$0$12940$892e0abb@auth.newsreader.octanews.com...   
   > Mho....just a note...you can not get power direct from voltage and   
   > current....you can get resistance from e=ixr...once you have resistance   
   > applying to power formula p=i2xr will give you instantaneous power   
   > adding time will give you power over time...   
   >   
      
      
   --   
   Correct Scientific Terminology:   
   Hypothesis - a guess as to why or how something occurs   
   Theory - a hypothesis that has been checked by enough experiments   
     to be generally assumed to be true.   
   Law - a hypothesis that has been checked by enough experiments   
     in enough different ways that it is assumed to be truer then a theory.   
   Note: nothing is proven in science, things are assumed to be true.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)