Electric Potential and Potential Energy Due to Point Charges(23)
A particle with charge $$+q$$ is at the origin. A particle with charge $$-2q$$ is at $$x=2.00 \,m$$ on the x axis.
(a) For what finite value(s) of x is the electric field zero?
(b) For what finite value(s) of x is the electric potential zero?