46. A solid conducting sphere (radius = 5.0 cm) has a charge of 0.25 nC distributed uniformly on its surface. If point A is located atthe center of the sphere and point B is 15 cm from the center, what is the magnitude of the electric potential difference betweenthese two points? (ke = 9 x 109 N•m2/C2)
(A) 15 V
(B) 23 V
(C) 30 V
(D) 45 V
(E) 60 V