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Re: Sparks - Bright in the middle, how to verify it - suggestion



Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-uswest-dot-net>" <jimlux-at-earthlink-dot-net>

This is most likely for a configuration where the gap is oriented vertically
and the change in voltage is due to the slight field nonuniformity caused by
the influence of the surrounding room. For very high voltages this is often
the case (it's hard to build a big gap that is far enough away from the
walls and floor that is horizontal).  And the impulse generator itself
causes some field distortion


For a truly symmetrical gap, in free space, positive or negative has no
meaning, so the voltages would be the same.


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, January 23, 2001 6:05 PM
Subject: Re: Sparks - Bright in the middle, how to verify it - suggestion


> Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<Parpp807-at-aol-dot-com>
>
> Chuck and Matt,
> This may be a little off your topic:
>
> Hoag and Korff, Electron and Nuclear Physics, show a table of sparking
> potentials
> for a positive or negative grounded 75 cm sphere. There is a difference in
> the sparking
> potential for gaps between 5 and 60 cm depending on which terminal is
> grounded. The voltage (kV) is higher when the negative terminal is
grounded.
> The spark potentials are equal at the shorter distances. But at 60 cm it
> requires 937 kV when the positive terminal is grounded, and 995 kV when
the
> negative terminal is the ground.
>
> Happy day,
> Ralph Zekelman
>
>
>
>