Originally posted by dragon
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PAGE 4
Properties of the glob
al electrical circuit
The current in the global electrical circuit is only about 10
-12
amps (A) per square meter - almost
nothing
5
. During fair weather there is an electric
potential difference of 250,000 to 500,000 volts
between the ionosphere and the earth’s surface;
the surface is negative relative to the
ionosphere. It is estimated that this curr
ent (and the electric potential difference) would
disappear in less than an hour if
all thunderstorm activity ceased
13
.
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