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21-08-2021
Physics

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What is the relationship between resistivity of a wire and length of a wire is?

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21-08-2021

[tex]\boxed{\sf R=\rho\dfrac{\ell}{A}}[/tex]

Or

[tex]\\ \rm\hookrightarrow \rho=R\dfrac{A}{l}[/tex]

Rho stands for resistivity of wire
R stands for resistance of wire
l stands for length of area
A stands for surface area of wire

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