Hello everyone, I have a little problem with resistance and ohms law.
I know that resistance of a cconductor is pl/A where
p is resistivity
l is length
A is surface area.
In power transmission, or even fuses principles, I hear that voltage is stepped up and current is stepped down. So as to use a conductor with smaller diameter.
Wouldnt this increase its area thereby increasing its resistance.
By that, will this not also increase its I square R loss which is not wanted?
I know that resistance of a cconductor is pl/A where
p is resistivity
l is length
A is surface area.
In power transmission, or even fuses principles, I hear that voltage is stepped up and current is stepped down. So as to use a conductor with smaller diameter.
Wouldnt this increase its area thereby increasing its resistance.
By that, will this not also increase its I square R loss which is not wanted?