Question

If force f length L current I and time t are taken as the basic quantities find the dimension of E_o.

Answer 1

1/4πε0 (q^2)/(r^2) =F

ε0 = 1/4π (q^2)/(r^2)F
I=q/t => q=It

[ε0] = [I^2 T^2]/[L^2 F]