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Answer :
Final answer:
The resistance of the copper wire is 5.72 Ω.
Explanation:
Resistance is a property that opposes the flow of electric current. It can be calculated using the formula R = (ρ * L) / A, where R is the resistance, ρ is the resistivity of the material, L is the length of the wire, and A is the cross-sectional area of the wire.
In this case, the resistivity of copper is given as 1.69 x 10-6 Ω cm and the length of the wire is 25.0 m. However, the given cross-sectional area is in cm², so it needs to be converted to m². 1 cm² is equal to 10-4 m², so the cross-sectional area is 7.45 x 10-7 m².
Plugging in these values into the formula, we get: R = (1.69 x 10-6 Ω cm * 25.0 m) / (7.45 x 10-7 m²) = 5.72 Ω.
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