6)
specifies the value of the electric field for each value of the position
vector r The word “field” signifies how some distributed quantity (which
could be a scalar or a vector) varies with position The effect of the charge
has been incorporated in the existence of the electric field We obtain the
force F exerted by a charge Q on a charge q, as
F
r
=
41
0
2
πε
rQq
ˆ
(1