Three very long wires are directed perpendicular to the plane of Figure P20.83. Each pas...

Three very long wires are directed perpendicular to the plane of Figure P20.83. Each passes through the x–y plane a distance L from the origin, and each carries a current I that is directed out of the plane of the drawing. An electron is at the origin and has a velocity directed along +x. What is the direction of the magnetic force on the electron?