resistivity example

Which Of The Following Has Highest Resistivity?

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Which Of The Following Has Highest Resistivity? Material Resistivity ρ (ohm m) Conductivity σ x 107 /Ωm Silver 1.59 6.29 Copper 1.68 5.95 Copper, annealed 1.72 5.81 Aluminum 2.65 3.77 Which of the following has high resistivity material? The most extensively used high working temperature resistance materials are alloys of nickel, chromium and iron called

What Is The Formula Of Resistivity?

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What Is The Formula Of Resistivity? Resistivity, commonly symbolized by the Greek letter rho, ρ, is quantitatively equal to the resistance R of a specimen such as a wire, multiplied by its cross-sectional area A, and divided by its length l; ρ = RA/l. The unit of resistance is the ohm. What is m in