Question

if 6uc and 3uc are kept in at a distance 3m then force exert by each charge on one another will be

Answer 1

r=3m

q1=6 uC

q2=3 uC

F=kq1q2/r²

=9*10⁹*6*10⁻⁶*3*10⁻⁶/3²

=18*10⁻³

=0.018 N

Hope this helps