1. The problem statement, all variables and given/known data You are working for the power company and wonder why we use a set voltage of power lines instead of a set current. You test your system on 38 m of aluminium wire with a diameter of 10.0 cm. The resistivity of aluminium is 2.65e-8 Ohm*meters. You place a 9000 Volt potential difference across the wire. a. What is the current through the wire? b. What is the power lost from the wire? 2. Relevant equations 3. The attempt at a solution a. First, i need to find the Resistance of the wire by using equation R = pL /A p = 2.65 e-8, L = 38 m, A= pi * (.05 m) ^2 Then i find the Current by I = V / R. I plug in the number, and i keep get the wrong answer. For the power lost: Can i use the equation P = I * V ?