A Total Charge of 7 * 10^-8 C Is Uniformly

Multiple Choice

A total charge of 7 * 10^-8 C is uniformly distributed throughout a non-conducting sphere with a radius of 5 cm.The electric potential at the surface, relative to the potential far away, is about:

A) -1.3* 10⁴ V
B) 1.3 *10⁴ V
C) 630 V
D) 130 V
E) 0 V