An electric field exerts a force on anything that has an electric charge. The force produced by an electric field is one of the action-at-a-distance forces. It is a non-contact force that does not require the objects that it affects to be in physical contact with one another.
An electric field is present wherever an electric charge is present. A positive charge will create an electric field that repulses other positive charges while attracting negative charges. Electric charges do not interact directly with one another. Rather, it is the electric field emanating from one charge that interacts with the field of another charge in its vicinity.