Question

There are two charges 1 mew c
and 5 mew c at certain distance force applied by 1 mew c on 5 mew c is F1 and 5 mew c on 1 mew c is F2 then F1/F2 is
1)1:5
2)5:1
3)1:1
4)25:1
​

Answer 1

| f12 |=| f21 |

=1/4πEO×q1q2/r^2

thus the answer is 1:1 option 3

thanku..❤️