General Physics II

23.27. A uniformly charged ring of radius 10 cm (0.10 m) has a total charge of 75 microCoulombs. Find the electric field on the axis of the ring at
(a) 1.0 cm = 0.01 m
(b) 5.0 cm = 0.05 m
(c) 30 cm = 0.30 m
(d) 100 cm = 1.0 m
from the ring.

[ These solutions say "23.31" because this was problem 31 in Serway's fourth edition. But that is the same as problem 27 in this fifth edition. I have not gone to the trouble to change all these. ]

Ch23 Homework Solutions