PHYSICS · Multi-part · AP · Physics 2: Algebra-based · Electric Force Field and Potential · Electric Force Field and Potential
Problem
Sphere A carries a net charge of −8.0×10−7C, while an identical metal sphere B is initially neutral. The two spheres are brought into contact, allowed to reach equilibrium, and then separated. Assume ∣qe∣=1.60×10−19C.
(a) Determine the number of excess electrons on sphere A before contact.
(b) After separation, what is the net charge on each sphere?
(c) How many electrons moved from sphere A to sphere B during the contact?