Re: emf, potential, voltage

[Michael Bowen <fizzbowen@MINDSPRING.COM>]

"Carl E. Mungan" wrote:
> emf = xi = the electromagnetic energy per unit charge supplied by
> certain devices or elements ...
>
> Some folks use E (big confusion possibilities with electric field!)
> or "epsilon in the Symbol font" (which looks like one lower-case "c"
> stacked on top of another - Is there a  name for this weird symbol?
> It's certainly not the actual "Greek epsilon" which looks like an
> italicized version of the mathematician's "set inclusion" symbol and
> usually denotes "permittivity".)

At the local branch of Recording for the Blind and Dyslexic, where I
help produce audio tapes of physics texts, that curly E is usually
read as "script cap[ital] E".

--MB