A wire is 1.0 m long and 1.1 mm2 in cross-sectional area. It carries a current of 5.4 A when a 2.1 V potential difference is applied between its ends. Calculate the conductivity σ of the material of which this wire is made. Known data: I hate Wileyplus. Ok, REAL known data: I know that I have to use 2pi(r), and pi(r)^2 R= (roe)(L)/(A) I understand that if I were to use a specific material, I could find the resistance. However, this does not ask for that. Please help!