A copper wire is r = 0.0250 cm in radius and 3.00 m in length, has resistivity ρ = 1.72x10^–8 Ωm, and carries a current of 0.400A. The wire has a charge carrier density of 8.50x10^28 electrons/m3. a. The resistance, R, of the wire is:____Ω. b.The electric potential difference, V, across the wire is:____V. c.The electric field, E, in the wire is:____V/m.

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