The resistance of a cable can be calculated using the formula:
R = ρ * L / A
where R is the resistance, ρ is the resistivity, L is the length, and A is the cross-sectional area.
Given that the resistivity (ρ) is 1.72×10^8 ohm-meter, the length (L) is 500 meters, and the cross-sectional area (A) is 2m^2, we can substitute these values into the formula:
R = (1.72×10^8) * 500 / 2
R = 8.6×10^10 ohms
Therefore, the resistance of the copper cable is 8.6 x 10^10 ohms.
Calculate the resistance of a copper cable which is 500meters long, it's cross sectional area is 2m^2, the resistivity is 1.72×10^8ohmmeter
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