The electric potential at a point in free space due to charge Q coulomb is Q x 1011 volts. The electric field at that point is
(a) 4πε0Q x 1020 volt/m
(b) 12πε0Q x 1022 volt/m
(c) 4πε0Q x 1022 volt/m
(d) 12πε0Q x 1020 volt/m
Correct option (c) 4πε0Q x 1022 volt/m
Explanation: