Answer to Question #288541 in Physics for Lia

Question

(a) A sphere has a surface uniformly charged with 1.00 C. At what distance from its center is the potential 5.00 MV? (b) What does your answer imply about the practical aspect of isolating such a large charge?

Answer 1

(a) From the equation for potential, find the distance:

$$V=\dfrac{Q}{4\pi\epsilon_0R}→R=\dfrac{Q}{4\pi\epsilon_0V}=1798\text{ m}.$$

(b) Isolating such a large charge requires a lot of space.