Question

Metal sphere 1 has a positive charge of 7.00nC . Metal sphere 2, which is twice the diameter of sphere 1, is initially uncharged. The spheres are then connected together by a long, thin metal wire. What are the final charges on each sphere?

Answer 1

A.) Q1' = (Q total/r total)*r1 = (5/3r)*r = 5/3 = 2.33 nC
B.) Q2' = (Q total/r total)*r1 = (5/3r)*2r = 10/3 = 4.67 nC

Answer 2

A.) Q1' = (Q total/r total)*r1 = (7/3r)*r = 7/3 = 2.33 nC
B.) Q2' = (Q total/r total)*r1 = (7/3r)*2r = 14/3 = 4.67 nC