Question

An infinite sheet of charge of constant surface density sigma coincides with the xy plane. what [otential for which E can be found. what are the equipotential surfacdes in this case?

Answer 1

For an infinitely large sheet of charge with current density σ, the electric field E everywhere except for points that lie in the x-y plane is given by:

E = σ/(2ε₀)

Any plane that is parallel to the x-y plane is an equipotential surface.