A 2.0-m length of copper wire with a resistance of 1.50 is placed in series with a 2.0-...

A 2.0-m length of copper wire with a resistance of 1.50 is placed in series with a 2.0-m length of superconducting wire. When a 12.0-V battery is placed across the series combination, find (a) the current in the circuit and (b) the potential difference across the two ends of the copper wire.