In the FPS system,

C = 0.224 (KA/d)(n-1)

K= dielectric constant
A= area of one side of one plate in square inches
d= separation of plate surfaces in inches
n= number of plates

No square term, sorry.

Jim


"James M. Knox"
shared these priceless pearls of wisdom:

-
-The capacity goes up linearly as a function of the surface area, but as the
-square (if I recall) of the separation of the conductors.
Jim Weir (A&P/IA, CFI, & other good alphabet soup)
VP Eng RST Pres. Cyberchapter EAA Tech. Counselor
http://www.rst-engr.com