The voltage distribution in the water DOES have to do with its
conductivity because it isn't being fed by a true voltage source. If
the water were something which presented a low resistance compared to
the resistance of the wire feeding it (i.e., the resistance of the
entire length of cord), then the voltage between different points in
the water would be small compared with the line voltage since most of
the voltage would be dropped in the cord. In this way, if the water
has a moderate resistivity, it is most dangerous (very high
resistivity and the water helps to insulate you, very low resistivity
and the water "shorts" the current around you, resistivity comparable
to your body and then you become part of the current path)

Sean


On Tue, Aug 3, 2010 at 12:12 PM, Olin Lathrop <olin_piclist@embedinc.com> w=
rote:
> Marcel Birthelmer wrote:
>> Since the water
>> can have high resistivity, there will be a voltage distribution in
>> the volume around the water
>
> The voltage distribution in the water has nothing to do with its
> resistivity. =A0It will be the same as long as the conductivity is unifor=
m.
> The actual resistivity only effects the current drawn, not the voltages.
>
>
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