A Solid Spherical Conductor of Radius 15 Cm Has a Charge

Multiple Choice

A solid spherical conductor of radius 15 cm has a charge Q = 6.5 nC on it.A second,initially uncharged,spherical conductor of radius 10 cm is moved toward the first until they touch and is then moved far away from it.How much charge is there on the second sphere after the two spheres have been separated?

A) 2.6 nC
B) 2.2 nC
C) 3.2 nC
D) 3.9 nC
E) 4.3 nC