Question

2.The force between 2C and -1C separated by a distance 1m in air:
1 point
(a) 18 X 109 N
(b) -18 X 10-9N
(c) 18 X 10-6 N
(d) -18 X 10-6N

Answer 1

here none option is correct

such case you can choose only option a.