Hi. Those of you familiar with the classic problem in Jackson, where a dielectric sphere (diel const = k) is placed in a uniform electric field E_0, may recall the simple expressions for the field inside of the sphere:(adsbygoogle = window.adsbygoogle || []).push({});

E_in = 3/(2+k) E_out.

The solution tells us that the field strength within the dielectric isreducedby a factor 3/(2+k).

I am trying to find the corresponding reduction factor for a dielectric cube in place of the dielectric sphere. I suspect that the reduction factor is simply 1/k, since that what it is in 2 dimensions, but I'm not sure.

Does anyone know what the reduction factor is, or where I can find it?

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# Dielectric Cube in a uniform electric field

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