1. A car, 5 km distance from a station, take 100 A over a 100 mm hard drawn copper trolley wire having a resistance of 0.270 ohm per km. The rail and ground return has a resistance of 0.06 ohm per km. If the station voltage is 750 V, what is the voltage of the car? 2. Relevant equations I think this are the relevant equations.. I assume that they are connected in series.. so Icar=Irail Vt=V[t]station i don't know what to do with 0.0270 and 0.06 ohms per km.. 3. The attempt at a solution I tried solving for Vcar by Vcar=I[car]*R[car] where in Icar=100 A and Rcar is 0.0270 ohm/km(1km/1x10^6mm)(100mm) Vcar=2.7x10^-4.. which is obviously wrong because V[station]=750V and its impossible that the car only takes 2.7x10^-4 V.. Pls help me thanks.