Question
What is the resistivity of a wire of 1.0 $\mathrm{mm}$ diameter, 2.0 $\mathrm{m}$ length, and 50 $\mathrm{m} \Omega$ resistance?
Step 1
Step 1: The resistivity of a wire is given by the formula: $$\rho = \frac{R \cdot A}{L}$$ where $\rho$ is the resistivity, $R$ is the resistance, $A$ is the cross-sectional area of the wire, and $L$ is the length of the wire. Show more…
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