Cross - section Area (1 Viewer)

[Premus]

how does the cross-sectional area of a conductor affect the current that passes through it?

does it affect anything else other than the current?

Thanks

 

[superbird]

the greater the cross-sectional area the more current that can flow through the lattice without being impeded.
the likelihood of electrons colliding with impurities within the wire is reduced

 

[Premus]

so if you double the cross-sectional area , u double the current?

 

[DAAVE]

Double cross sectional area, u half the resistance.

If u keep the voltage constant, since V = IR

let R = 1

V = I

Let r = 1/2

V=I/2

I = 2V

So effectively u double the current if voltage is constant.