Electric field is a characteristic of the system of charges and
is independent of the test charge that you place at a point to determine
the field The term field in physics generally refers to a quantity that is
defined at every point in space and may vary from point to point Electric
field is a vector field, since force is a vector quantity The true physical significance of the concept of electric field, however,
emerges only when we go beyond electrostatics and deal with time-
dependent electromagnetic phenomena