Why resistivity dosent depend on lenght and area of wire?
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hey there
according to ohm's law
v=Ir
hope it help
Answered by
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Explanation:Well,yeah,electrical resistivity doesn't depend upon length and area of wire
We know that R=rho×l/A
Rho is a constant of proportionality in this case
In simpler words,electrical resistivity is a term used to express the resistance offered to a current flow by a conductor of length=1m and area of cross section=1 sq.units.
IT IS A CONSTANT FOR A PARTICULAR MATERIAL!
Happy learning!
P.S
sorry,I can't find the symbol of rho in my keyboard
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