9 Jun
2009
9 Jun
'09
6:52 p.m.
On Jun 9, 2009, at 2:46 PM, Brent Hilpert wrote:
Of course, with the other "plate" being the earth.
Without some numbers, I'm not entirely sure about that. Large plate
area but
also a rather thick dielectric and hence large plate separation.
Yes, a
tremendous amount of energy is released in a lightning strike (aka
dielectric
breakdown) but that comes with a very high voltage. C=Q/V, energy
is also a
function of Q & V, large amount of energy does not necessarily
imply large C.
Hmm yes, I agree. I'd love to do a SPICE simulation of some sort
of oscillator using a cloud/earth capacitor. :)
-Dave
--
Dave McGuire
Port Charlotte, FL
>
(incidentally, how come MF does not mean Mega Farad)
Since the largest capacitor I have ever heard of is 100 Farads, it
really doesn't seem likely that there will be any confusion.
Would a "thunder cloud" be considered a capacitor? If so, how many MF would lightning take?
LOTS. Think plate area. :)