Finding the drifting speed. (of an electron?)

Question

anonymous · Answer

@.Sam.

anonymous · Answer

The wire used for student laboratory experiments is typically made of copper and has a radius equal to 0.815 mm. 
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Estimate  the total charge of the free electrons in each meter of such a wire carrying a current that has a magnitude equal to 1.0 A.

anonymous · Answer

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anonymous · Answer

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anonymous · Answer

$I= 1 A$
and I'm looking for Q correct?

anonymous · Answer

$$I=nqvA$$
current equals the number of electrons (n?) times charge of one electron (q?) times their velocity (v?) through area A?

anonymous · Answer

J is the current density....but it also looks similar to some "flux" through a region according to this picture. 

I"m just trying to visualize it

anonymous · Answer

I'm tired. I'll look at it tmrw, it should make more sense...It doesn't look like a difficult concept

experimentx · Answer

J is a field ... flux = field .dot. area