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

On Wed, 16 Jul 2008 09:51:51 +0200 "Szczepan Bia?ek" <sz.bialek@xxxxx> wrote:
|
| "Don Kelly" <dhky@xxxxxxx> wrote news:OTefk.110294$gc5.47073@xxxxxxxxxxxx
|> >
|> It's a bit more than this simplistic and superficial approach.
|> To get a high voltage between two points, it is NECESSARY that there is a
|> charge separation.
|
| No. Assume that you have very small cloud composed of 10 small charged
| drops. Between the cloud and the Earth is some voltage. If the drops join
| together the voltagr rise.

Same total charge in Coulombs. Same distance in meters. Same potentin in Volts.
What is it that you are changing to raise the voltage?


|>This separation of charge
|
| In contemporary science the separation of charge is used in place of
| build/lowering of voltage. Current flow from high voltage to lower. Not from
| more charge to less.

The voltage is a difference between two points.


|> is the cause of the voltage difference- look at the definition of
|> potential difference. Updrafts, wide temperature ranges, and charge
|> separation due to changes in temperature followed by freezing are some of
|> the factors.
|> Suffice it to say that there are parts of a cloud that are negative with
|> respect to earth and parts which are positive due to charge buildup.
|
| Are you talking about voltage?
| All parts of clouds have excess of electrons.

Maybe the whole planet has an excess. Or the whole solar system. Or ...


| Meteorology is a new science. Physics is older. Lightnings folows the
| physics laws. Meteorologist should read physics.

They do.

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