Question

Two free parallel straight wires carrying currents in opposite direction
(A) attract each other
(B) do not affect each other
(C) repel each other
(D) get rotated to be perpendicular to the each other

Answer 1

Answer:

(C)Repel

Explanation:

You can check this via the right hand rule .

If one of the wires has current in upward direction, the field at the parallel wire to its right will have field into the page, so the force on it will be away from the other wire.