A length of copper wire has resistance of 0.172 Ω and a cross-sectional area of 7.85 x 10^(-5) m^2. The resistivity of copper is 1.72 x 10^(-8) Ωm. What is the length of this piece of wire? a. 785 m b. 873 m c. 250 m d. 78.5 m
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A length of copper wire has resistance of 0.172 Ω and a cross-sectional area of 7.85 x 10^(-5) m^2. The resistivity of copper is 1.72 x 10^(-8) Ωm. What is the length of this piece of wire?
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