A metallic sphere 1 of radius 1.00 cm is far away from a metallic spherical shell 2 of radius 2.00 cm. Charge 450 nC is placed on 1, with no charge on 2 or anywhere nearby. Next, the two objects are joined by a long, thin, metallic wire and finally the wire is removed.
a. What is the initial voltage on 1?
b. How is the charge shared between A and B?
c. What is the voltage change of 1 and 2 as the charge transfers?