The Greek letter omega is the symbol for this unit of electrical resistance
The electrical resistance per unit length, area, or volume of a substance 
is... [DOC] [TLE] Physics Study Guide/Greek alphabet - Wikibooks, open books for an ... [PAR] The reason is quite simple: there are only so many symbols in the Greek and 
Latin alphabets, and scientists and .... omega, Ohms (unit of electrical resistance) [DOC] [TLE] What are the units for resistance?