Paul,

"We also have W = I x R." ??
... shouldn't that be I x V ? [Linked Image]

I would just like to add something for those that may be confused. I think that we are generally taught ohms law as I=E/R with E being Electro-Motive Force (Voltage) This is the same as the examples here with 'V' in place of the 'E' we may be more used to seeing. No difference (maybe ease of memorization?) When we sovle for Power (W in these examples) we use the formula P=I*E

We like our PIE here.

[Linked Image]
Bill

Bill