The resistivity of a certain metal wire is reported as

PHYSICS · Subjective · CBSE · Physics · Units and Measurements · Units and Measurements

Problem

The resistivity of a certain metal wire is reported as (1.68×10−8 Ω m) ± 0.05×10−8 Ω m(1.68\times10^{-8}\,\Omega\,\text{m})\,\pm\,0.05\times10^{-8}\,\Omega\,\text{m}. Determine the percentage uncertainty in the electrical conductivity σ=1/ρ\sigma = 1/\rho.

Related theory

Browse the problem library