Resistivity, ρ\rhoρ, is a material property defined by the relationship:
ρ=RAL \rho = \frac{R A}{L} ρ=LRAwhere R R\,R is the electrical resistance, A A\,A is the cross-sectional area, and L L\,L is the length of the conductor.
What is the correct representation of the S.I. base units for resistivity?
kg m3 s−3 A−2\text{kg}\,\text{m}^3\,\text{s}^{-3}\,\text{A}^{-2}kgm3s−3A−2
kg m2 s−3 A−2\text{kg}\,\text{m}^2\,\text{s}^{-3}\,\text{A}^{-2}kgm2s−3A−2
kg m3 s−2 A−2\text{kg}\,\text{m}^3\,\text{s}^{-2}\,\text{A}^{-2}kgm3s−2A−2
kg m2 s−3 A−1\text{kg}\,\text{m}^2\,\text{s}^{-3}\,\text{A}^{-1}kgm2s−3A−1
