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I am having trouble determining what the general form of Poisson's equation would be between

and

Can they both be called the general form?

and

Can they both be called the general form?

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- Thread starter OllyRutts
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- #1

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I am having trouble determining what the general form of Poisson's equation would be between

and

Can they both be called the general form?

and

Can they both be called the general form?

- #2

BvU

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I do wonder where you got this form from: I find ##\varepsilon\varepsilon_0## very ugly (I am used to ## \varepsilon=\varepsilon_r\varepsilon_0## ) and I don't know where the ##f## in your first expression comes from.

- #3

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I do wonder where you got this form from: I find ##\varepsilon\varepsilon_0## very ugly (I am used to ## \varepsilon=\varepsilon_r\varepsilon_0## ) and I don't know where the ##f## in your first expression comes from.

I should have said this relates to a LIH dielectric material

pf is the free charge density

I guess the text book im using is using for gauss's law in terms of

So any is appropriate for the general form?

- #4

BvU

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tip: use ## [ ...##\TeX ## code ] ## as ##\LaTeX## delimiters to get ##{\bf D} =\varepsilon\varepsilon_0 {\bf E} ##

and use subscripts to distinguish factors from, well, subscripts.

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Thanks much appreciated.

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