Re: Error in Wikipedia article: Faraday's law of induction


"Don Kelly" <dhky@xxxxxxx> wrote news:Abzfk.8941$nD.5060@xxxxxxxxxxxx

Quote:
"During thunderstorms a charge separation takes place in a cloud by a
process which is the subject of several theories but is still not fully
understood....Usually positive charges drift to the upper layer of a cloud
and the bulk of the cloud becomes negatively charged"

What means "positive charges"?

Also a very abbreviated non-technical summary of lightning indicated in
the following http://thunder.msfc.nasa.gov/primer/primer2.html.

Look than in page 3: http://thunder.msfc.nasa.gov/primer/primer3.html

There is the sketch in "The global electric circuit"
You can see that at fair weather electrons migrate up (small arrows
represets currents - electrons move in opposite direction). They are atached
to H2O. The voltage is low because the aggregates of H2O molecules are
small.
After condensation the voltage arises and the slectrons are send to places
where the voltage is lower.

The sentence: "Present measurements indicate that an average of almost 1
ampere of current flows into the stratosphere during the active phase of a
typical thunderstorm" cannot be true. Storm cloud send electrons in all
directions.e Global Electric Circuit

the "positive" top of cloud to ground strokes

Positive strokes are inter-clouds where the Earth is the intermediary.

I am not interesting in details. "The global electric circuit" is enough for
me.
S*


.

Relevant Pages

  • Re: Error in Wikipedia article: Faradays law of induction
    ... cloud and the bulk of the cloud becomes negatively charged" ... What means "positive charges"? ... There is the sketch in "The global electric circuit" ... After condensation the voltage arises and the slectrons are send to places ...
    (sci.physics.electromag)
  • Re: Error in Wikipedia article: Faradays law of induction
    ... understood....Usually positive charges drift to the upper layer of a cloud ... What means "positive charges"? ... After condensation the voltage arises and the slectrons are send to places ...
    (sci.physics.electromag)
  • Re: Alice slays Mad Hatter
    ... Your still in an almighty vacuum that extends for ever so far just ... you have a small bit with a few charges that have modulated a small bit ... empty space beyond the charge cloud can not be called a vacuum. ...
    (sci.physics.relativity)