Author Topic: Dielectric Greater than Water Needed  (Read 5311 times)

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Re: Dielectric Greater than Water Needed
« Reply #16 on: December 30, 2013, 17:00:39 pm »
I don't mean to interrupted but you don't necessarily need a an insulator with a higher dielectric value than water. The capacitance equations tells us the thinner the material, the higher the over all capacitance so you could use a material with a lower dielectric constant as long as it was thin enough it would result in a larger capacitance than the water so the field would then be applied to the water.

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Re: Dielectric Greater than Water Needed
« Reply #17 on: December 30, 2013, 19:08:41 pm »
I don't mean to interrupted but you don't necessarily need a an insulator with a higher dielectric value than water. The capacitance equations tells us the thinner the material, the higher the over all capacitance so you could use a material with a lower dielectric constant as long as it was thin enough it would result in a larger capacitance than the water so the field would then be applied to the water.

Excellent point.  Which still brings up self healing oxides for example.   A stainless material where one if it's components creates a suitable oxide dielectric.

TS

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Re: Dielectric Greater than Water Needed
« Reply #18 on: December 30, 2013, 19:10:28 pm »
OR... increase the size of the water gap?