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) 7.0 * 10⁵ V
D) -6.3* 10⁴ V
E) 0