Question

Two point charge of -2C and -6C repel each other with a force of 12N .if each is given an additional charge of-4C ,then what will be the new force ?

Answer 1

Answer:

K=

4πϵ

o

k

1

and its units is N−m

2

/C

2

It depend on system of unit and dielectric constant (k), that's medium between charges