开云体育

I wrote:

In the VHF/UHF Handbook, chapter Receivers, Transmitters And Transceivers ,
section, 'Tuned Circuits'; the author writes: "If discs are used, the
capacitance varies in a very non-linear manner with the distance between them.
It is: C(pF) = 0.00885 x Area (sq mm) / Spacing (mm)"

The equation for capacitance vs area vs spacing is linear. What's up?

My question is perhaps not clear. The author states that "capacitance varies
in a very non-linear manner...". Yet the equation is linear. Now, what's up?

-J