Question

What is the maximum electric force between 2 charged particles 1 meter apart in free space?

Answer 1

F=kq1*q2/r²

F=k*q1*q2/1

therefore Fmax is infinity as

F=k*q1*q2 can be infinity

if q1=q2=1 C

then

F=k

=9*10^9 N

Hope this helps.