Re: VRD: Ohm's Law variables - why is I used for current?

Hello Jared: I too could not find a good reason for assigning "I" as the 
symbol for current in Ohm's law. My suspicion is that it was chosen from 
earlier mathematical symbology to denote a vector quantity parallel to 
the "x" axis. Standardized letters like these are common in the 
disciplines of physics and engineering, and are internationally 
recognized. The "unit abbreviation" for each quantity represents the 
alphabetical symbol used as a shorthand notation for its particular unit 
of measurement.
From Webster I found the following definition:
" Main Entry: I
Function: abbreviation
Electric current, Indian, interstate, iodine, Israeli "
Look-up these Internet reference sites:
 http://www.m-w.com/
http://www.symbols.com/index/wordindex-a.html
Your MAD.SCI Micro

Admin note:
"I" stands for "Impetus", the original name for the strength of
an electrical current; that is, before Andre-Marie Ampere's Law
of 1825.