Determining Resistivity from Conductor Dimensions
A cylindrical conductor made from an unknown material has a length \(L = 3.0\ \text{m}\) and a uniform cross-sectional area \(A = 2.0 \times 10^{-6}\ \text{m}^2\). The resistance measured across its ends is \(R = 4.5\ \Omega\). Using the formula \(\rho = \frac{RA}{L}\), calculate the resistivity \(\rho\) of the material. Ensure your answer is expressed […]