k =9•10⁹ N•m²/C²
r=0.18 m
q₁= 5•10⁻⁹ C
q₂ = - 2•10⁻⁹ C
PE= k•q₁•q₂/r = ...
two charge 5NC and -2NC are placed at a point (5cm,0,0)and (23cm,0,0)in a region of a space where there is no other electric field.calculate the electrostatic potential energy of this charged system
1 answer