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## Homework Statement

It is known that the theoretical resistivity of copper is approximately: 2*10^-8 Ωm. But after I conducted an experiment to find the resistivity of copper, the results turned out to be: 1.68*10^-8Ωm.

This is a very small error that can be easily dismissed due to "human error" but i am not allowed to mention "human error".

What other factors might have caused this small percentage of error between the theoretical and obtained results??.... hint: i have already researched into the corrosion and crystal structure of copper and it doesn't derive into any possible conclusions.

## Homework Equations

## The Attempt at a Solution

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