As the separation between a charge and a charge increases from a few millimetres to…
PHYSICS · Single correct · AP · Physics 2: Algebra-based · Electric Force Field and Potential · Electric Force Field and Potential
Problem
As the separation r between a +2μC charge and a −2μC charge increases from a few millimetres to several metres, which statement best describes the behaviour of the electric potential energy U of the system?
(a) It increases toward a large positive value.
(b) It decreases toward negative infinity.
(c) It approaches zero from the negative side.
(d) It remains constant at a finite negative value independent of r.