The length of a wire is 2 meters and the radius is 2 mm. If the specific resistivity of metal wire is 5x10 ^ -8 ohm-meter, then the resistance of the wire ..
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Answer:
7.96 mΩ
Explanation:
Resistance = Resistivity × Length / (Area of cross section)
= ρL/(πr²)
= [5 × 10⁻⁸ Ω m × 2 m] / [3.14 × (2 × 10⁻³ m)²]
= 0.00796 Ω
= 7.96 mΩ
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