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What is the resistance of 1.0 m of a solid cylindrical metal cable having a diameter of 0.40 inches...
4 months ago
Q:
What is the resistance of 1.0 m of a solid cylindrical metal cable having a diameter of 0.40 inches and a resistivity of 1.68 × 10-8 ω • m?
Accepted Solution
A:
Answer:0.00021 ΩStep-by-step explanation:R = ρℓ/A Resistivity: ρ = 1.68×10 ̄ ⁸ Ωm Length: ℓ = 1.0 m Area: A = π*radius² = π * ( (0.40inch * 0.0254m/inch) / 2 )² = 8.1×10 ̄ ⁵ m²