by rambotrout <rambotrout@[EMAIL PROTECTED]
>
Jun 12, 2008 at 02:40 PM
> > What would be the electric field in between the
> > dielectric materials?
>
> No change, I think. The electric field is impressed by the charge on
> the plates. The amount of energy involved in impressing that
> particular field, that is something else again.
Do you mean it follows the Coulumb's law without being affected by the
dielectric material? I thought (but I may be wrong) the dielectric
material would change the electric field in the material as the law is
derived for the va***m case. The Coulumb constant is affected by
electric constant (va***m permittivity) and a dielectric constant is
the ratio of static permittivity of the material and electric
constant. I am pretty sure it does change something just like it
affects the capacitance.
> > If the water contains ions, would that change
> > its dielectric constant from that of its pure
> > form (about 80)?
>
> No, it controls its "leakage" or resistivity.
I don't think I am getting an answer. Assume that the electrodes are
thinly insulated so as to block current leakage. Would water with ions
in it still retain its dielectric constant of 80?
