3. Two wires parallel to each other have current li and 12, the current in lz is going up (as drawn); the direction of li is not given. The wire carrying 12 feels a magnetic force to the left (as drawn). What is the direction of l1? Explain. (Since this is a binary situation, simply stating a condition is not sufficient, walk through your logic using the rules of magnetic fields and forces) 1 12 FB