Two long and parallel straight wires A and B carrying currents of $8.0\;A$ and $5.0 \;A$ same direction are separated by a distance of $4.0\;cm$ . What is the direction and nature of the force on a 10 cm section of wire A?

Question

$\begin{array}{1 1} \text{From A to B ; repulsive} \\\text{From B to A ; repulsive} \\ \text{From A to B ; attractive } \\ \text{From B to A ; attractive } \end{array} $