For the ring of charge described in Example 23.11 (Section 23.3), integrate the expression for E, found

Question:

For the ring of charge described in Example 23.11 (Section 23.3), integrate the expression for E, found in Example 21.10 (Section 21.5) to find the potential at point P on the ring's axis. Assume that V = 0 at infinity. Compare your result to that obtained in Example 23.11 using Eq. (23.16).