Question

the electrostatic potential energy of two point charges,1 micro Coulomb each, placed 1 m apart in vaccum is?

Answer 1

100 micro meter..............

Answer 2

F=1/4πε0 q1q2/r^2


F will be minimum when q1 and q2are minimum i.e.q1=q2=1.6×10−19i.e.q1=q2=1.6×10−19

Also, given r=1m

Fmin=9×10^9N×(1.6×10−10)^2

Fmin=2.3×10^−28N.