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A couple more thoughts...
* * * *
I think what Fred Lemmerhirt wrote is pretty good...
The product of the voltage across any segment of a circuit and the current
in the same segment represents the rate at which the energy of the charge
Volt-amps is easy to measure because it is easy to measure rms volts and rms
amps. Power is more difficult to measure, i.e. requires more than a simple
multimeter.
Michael D. Edmiston, Ph.D. Phone/voice-mail: 419-358-3270
Professor of Chemistry & Physics FAX: 419-358-3323
Chairman, Science Department E-Mail edmiston@bluffton.edu
Bluffton College
280 West College Avenue
Bluffton, OH 45817