The diameter of a specific copper wire is 8.312 mm, and has a resistivity of 1.72 × 10-8 Ω⋅m   Find the resistance of a 0.85 km length of such wire used for power transmission in Ω.

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Q: In the figure, two long straight wires at separation d = 15.9 cm carry currents of i₁ = 3.74 mA and…

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Q: As shown in the figure below, two long parallel wires (1 and 2) carry currents of I₁ = 3.14 A and I₂…

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Q: A dentist uses a mirror to examine a tooth that is 1.25 cm in front of the mirror. The image of the…

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Q: QUESTION 21 A +1 C charge is placed at position x=-2 m, while a +2 C charge is placed at position…

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Q: Find the equivalent resistance between points A and B for the group of resistors shown in the figure…

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Q: An ideal gas with energy E=NKBT is subjected to a cyclic, quasi-static (i.e. reversible) process…

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Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.