chuck wrote:


If the corona starting voltage is typically 30 kV/cm radius, then a tiny
wire could ionize the air at only 300volts or so for a 0.01 cm radius.

http://home.earthlink.net/~jimlux/hv/corona.htm
Corona

As an update, I see that Llewellyn (not
W7EL) in 1975 established experimentally
that for a point radius of 0.01 cm, a
corona will be formed with fields of
only 100 V/m. These results differ a bit
from what would be predicted by
Paschen's curve.

73,
Chuck

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