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Three wires of the same diameter and length are made from three different metals: copper (ρ = 1.7 × 10-8 Ω·m) ,aluminum (ρ = 2.7 × 10-8 Ω·m) ,and silver (ρ = 1.6 × 10-8 Ω·m) .Which wire has the least resistance?
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