# What is the resistance per meter of an gold wire with a cross-sectional area of 2.6×10−7 m2 .?

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- Anonymous2 months ago
Xsection A = 2.6*10^−7 m^2 = 0.26 mm^2

gold resistivity ρg = 24.4*10^-3 ohm*mm^2/m @ 20°C

reistance R = ρg*L/A = 24.4*10^-3*1*10^2/26 = 2.44/26 = 0.094 ohm

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- alexLv 72 months ago
Formula

R = ρL/A

with R = resistance

ρ=resistivity

L=length

A=cross-sectional area

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