Concept: Electric Fields -- Near and Far

A:

[quarter ring]

B:

[half ring]
 

C:

[three-quarter ring]

D:

[full ring]

Which charge configuration creates the largest E at P (center of circle)?

Which charge configuration creates the largest E far away?

Adapted from HRW Ch. 23, Question 8.


"http://www.physics.udel.edu/~watson/phys208/concept7.html"
Last updated Sept. 14, 1997.
Copyright George Watson, Univ. of Delaware, 1997.