# Electrical Engineering!!!!!!!!!?

A hard-drawn copper conductor consists of strands of solid round wires each having a diameter of . in. Determine the resistance of a ft length of this conductor. Neglect any additional resistance due to spiraling

• Resistance of a wire in Ω

R = ρL/A

ρ is resistivity of the material in Ω-m

L is length in meters

A is cross-sectional area in m²

A = πr², r is radius of wire in m

resistivity Cu .e- Ω-m or .e- ohm-mm

.” = . m

ft = m

for each strand: Area = πr² = π(.)² = .e-m²

R = (.e- Ω-m)()/(.e-) = ohms

total resistance = / = . ohms

check my arith

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• Billrus is correct, assuming skin effect is ignored.

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