Answer to Question #228256 in Physics for Porco

Question #228256

The resistance of a 2 km length of cable of cross-sectional area 2 mm² and resistivity of

2x10^-8 Ωm is

Expert's answer

"R=\\rho\\cdot\\frac{l}{A}=2\\cdot10^{-8}\\cdot\\frac{2000}{2\\cdot10^{-6}}=20\\ (\\Omega)" . Answer

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