17.5 Resistivity   Expected: RL/A The resistance of an ohmic conductor is proportional to its length, L, and inversely proportional to its cross-sectional area, A L Rρ A  ρ (“rho”) in.

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Transcript 17.5 Resistivity   Expected: RL/A The resistance of an ohmic conductor is proportional to its length, L, and inversely proportional to its cross-sectional area, A L Rρ A  ρ (“rho”) in.