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A wire has a mass (0.3 ± 0.003)g, radius (0.5 ± 0.005)mm and ...

1 · 2 · 3 · 4 · The volume of the wire is given by, V=πr2L Thus density of the wire, ρ=πr2Lm​. Taking log and then differentiate: ⟹ρΔρ​×100=mΔm​×100+2rΔr​×100+LΔL ...

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