Two long parallel copper wires carry currents of `5 A` each in opposite directions. If the wires are separated by a distance of ` 0.5m` , then the force between the two wires is

Two long parallel copper wires carry current of 5A each in opposite directions. If the wires are separated by a distance distance of 0.5m, then the force per unit length between the two wires is

Two long parallel copper wires carry current of 5A each in opposite directions. If the wires are separated by a distance distance of 0.5m, then the force per unit length between the two wires is

Two long parallel copper wires carrying currents in the opposite directions of 5 A each. If the wires are separated by a distance of 0.5 m, then the force per unit length between the two wires is