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[asterysk]

I am attempting to create an animation showing the electric field lines when a current is flowing . There are many diagrams of + - charge field lines but I haven't found anything that shows what they may look like when there is a sea of electrons drifting along a wire. so have a few questions :

1) When current flows along a wire, are there now more electrons in a given segment of the wire or are there the same number but they are drifting along the wire

2) When modelling the electric field line, should I only consider the + - coupling or does the - - field line have relevance for the resulting EM field

3) As the electron flows , it will stretch the + - field line , how much before it creates a new field line with another +

4) To find or create a formula for the field line in space, what should I be looking at

5) I see a lot of references to the "kink" in the electric field due to electron motion, what is the effect of the "kink" on the field line

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