Electric Currents & Ohms Law / ElectricalElectric Currents & Ohm’s Law – Units of Resistivity December 13, 2020April 2, 2023 - by Team_Engineers Units of Resistivity From Equation we have In the S.I. system of units, Hence, the unit of resistivity is ohm-metre (Ω-m). If l is in centi metres and A in cm2, then ρ is in ohm-centi metre (Ω-cm). Solved Example ➀ ➁ ➂ ➃ ➄ ➅ ➆ ➇ ➈ ➉ Visit NCERTworld.com for NCERT solutions and Textbook downloads