Hi there. I'm basically trying to understand why when 2 wires are place near each other, given a current in the same direction they will attract each other. I have read a this: https://www.physicsforums.com/showthread.php?t=39472 But I don't see how some say 'generates a magnetic field upwards(to the ceiling)'. Surely it would be generating this in all perpendicular directions. And not just one 'instance' of pointing upwards? Hope that's clear enough, if not I'll try draw a diagram.