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

On Tue, 15 Jul 2008 10:25:45 +0200 "Szczepan Bia?ek" <sz.bialek@xxxxx> wrote:
|
| <phil-news-nospam@xxxxxxxx> wrote news:g5fsot3g44@xxxxxxxxxxxxxxxxxxxx
|> On Mon, 14 Jul 2008 16:42:08 +0200 "Szczepan Bia?ek" <sz.bialek@xxxxx>
|> wrote:
|> | |
|> | Storm clouds are high voltage generators (Armstrong and Kelvin). As such
|> | they must send electrons in ALL directions.
|>
|> How can a storm cloud generator a charge if it would send electrons in all
|> directions? Do these new charges emerge from some kind of singularity in
|> the middle of the cloud?
|
| A storm cloud generate the high VOLTAGE not a charge. The Earth has the
| excess of electrons so the atmosphere too. But currents and lightnings take
| place only if the difference of voltage exist. Water droplets work like the
| capacitor. Small drops in cloud small voltage, large drops large voltage
| (see Kelvins high voltage generator). In a storm cloud are stored heat and
| electrons. The both must be dissipated when the cloud disappear.

If there is a voltage and no current, there is a charge. That's the initial
state of the clouds.

A capacitor charged up has voltage and charge. Voltage is just the density
of a change (the same charge spread over more capacitors has less voltage).

Also, for a charge to have been established, there had to be some current at
some point. Either there was current between the + and - ends of the charge
to pull things apart, or there was current from externally feeding in more
electrons.

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