Find the force of interaction between 60 stat coulomb and 37.5 stat coulomb spaced 7.5cm apart in transformer oil(εr=2.2) in 10^-4 N,
(a) 8.15
(b) 5.18
(c) 1.518
(d) 1.815
The question was asked in my homework.
I need to ask this question from Coulomb Law in portion Electrostatic Fields of Electromagnetic Theory