The Scenario: Two long parallel conductors A and B are carrying an ac current with a wave length of λ. The conductors are separated in distance at all points by λ/4 and the ac current phase of conductor A leads the ac current phase of conductor B by λ/4 at all points mutually at right angles between the two conductors. The Problem: Conductor A will always be in a field radiated from Conductor B that is exactly in phase with the actual phase of conductor A's current. Consequently conductor A will experience a force directed toward conductor B. Conductor B will always be in a field radiated from conductor A that is exactly 180° out of phase with with the actual phase of conductor B's current. Consequently conductor B will experience a force directed away from conductor A. Since forces on both conductors are in the same direction it seems that a net force would exist that would tend to move both conductors in a direction from conductor A towards conductor B. The question: Why will this not happen?