A 3.7 cm long wire with a diameter of 1.43 cm carries a stea…

A 3.7 cm long wire with a diameter of 1.43 cm carries a steady current of 5.27 A. The resistivity of copper is 1.70 ✕ 10−8 Ω · m. a) What is the resistance of the wire? [ans1] b) What is  the potential difference (in µV) between two points on the wire that are 3.70 cm apart? [ans2]