A metal sphere with charge q=5.1 μc and radius r=2.8 cm is concentric with a larger metal sphere with charge q=12 μc and radius r=6.8 cm. (a) what is the magnitude of the potential difference betwee

A metal sphere with charge q=5.1 μc and radius r=2.8 cm is concentric with a larger metal sphere with charge q=12 μc and radius r=6.8 cm. (a) what is the magnitude of the potential difference between the spheres? if we connect the spheres with a wire, what then is the charge on (b) the smaller sphere and (c) the larger sphere?