Answer:
the resistance of a conductor is R = (rho) L / A , where L is the length of the conductor
so that L = R A / rho = 0.172 x 10^-4 / 1.72 x10^-8 = 10^3 m = 1000 m, so the answer is (D)
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Answer:
the resistance of a conductor is R = (rho) L / A , where L is the length of the conductor
so that L = R A / rho = 0.172 x 10^-4 / 1.72 x10^-8 = 10^3 m = 1000 m, so the answer is (D)