I have an electric dipole that is located at a distance $a$ from two infinite conducting planes that form a right angle between them.
I'm asked to find the electric potential in all the points that are on a line that passes through the vertex of the conductor and the dipole (i.e. a line that forms an angle of $45º$ with the horizontal) and the induced charge in the conductor.
I thought of doing this with the method of image charges, where 4 dipoles would result. But the conductor is not grounded (at least, that is not specified), so: can this method be used? Both if the answer is "yes" or "no": why? If it is not grounded, couldn't I assume that I will take my potential reference as the conductor and that would "ground it"? I'm confused with this: I don't know if "grounding" something just means that the potential reference will be there or if it implies something else I'm ignoring.