What quality must the charge density on the surface of a conducting wire possess if an electric field is to act on the negatively charged electrons inside the wire?

Answer 1

non uniform

Answer 2

The charge density on the surface of a conducting wire must be nonuniform, with a tangential component to the surface, in order for an electric field to act on the negatively charged electrons inside the wire. This nonuniform charge distribution creates an electric field inside the wire, allowing for the movement of the electrons.