An example of no electric field lines around two uncharged objects. Of special importance is the lack of fields showing inside the cylinder, which acts as a Faraday cage, shielding the enclosed area from any external electrical fields. This is the classic case of no electrical fields inside an electrical conductor. Part of a series showing different charging conditions. The electric fields are shown by placing the two charged objects in a pan filled with cooking oil and pepper flakes, which align in the electric field, allowing visualization of the field.