1. The problem statement, all variables and given/known data Wires 1 and 2 are identical except that they are each made of a different material. The one end of wire 1 is connected to one end of wire 2. The two remaining ends are connected across a battery and current flows through the two wires. Is the potential difference is wires 1 and 2 the same or different? Is the current in wires 1 or 2 the same or different? 2. Relevant equations R=(ρL)/A V=IR 3. The attempt at a solution The resistivity would change because the material changes; therefore, the resistance changes. If the resistance changes, the current changes. Potential difference remains the same. Is this correct?