PHYSICS · Single correct · AP · Physics 2: Algebra-based · Electric Force Field and Potential · Electric Force Field and Potential
Problem
A small conducting sphere has a net charge of +3.2μC. It is then connected briefly to Earth until it becomes electrically neutral.
Approximately how many electrons move through the grounding connection during this process, and in which direction do they flow?
(a) 2.0×1013 electrons flow from the sphere to Earth.
(b) 2.0×1013 electrons flow from Earth to the sphere.
(c) 6.4×1013 electrons flow from Earth to the sphere.
(d) 3.2×1012 electrons flow from Earth to the sphere.