Suppose we have two thin, very long, perpendicular wires soldered to each other so they form a cross. What would electric field lines look like in the plane that wires form, and would it be possible to calculate electric field at a point at distance $d$ from the wire crossing and on one of the $90°$ angle bisectors? Would it be easier to calculate electric field on the axis perpendicular to the wires plane and going trough wire crossing?
This question is purely a product of imagination and not a real task. I am not even aware of the complexity of the problem but would like to know if it's possible to do such calculations.
UPDATE: Both wires are, of course, carrying charge of linear charge density $\alpha$.