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A wire of length 10 m and diameter 0.4 mm has a resistance of 2 Ω. The resistivity of the wire is |
$2.5 × 10^{-8} Ωm$ $1.5 × 10^{-8} Ωm$ $1 × 10^{-7} Ωm$ $2 × 10^{-6} Ωm$ |
$2.5 × 10^{-8} Ωm$ |
The correct answer is Option (1) → $2.5 × 10^{-8} Ωm$ |
