Question

Which of the following have a largest net force?
A 1-C charge exactly halfway between two -2-C charges separated by 2 m.
A 1-C charge a distance of 2m from a -4-C charge.
A 1-C charge a distance of 1 m from a -2-C charge.
A 1-C charge exactly halfway between a -1-C charge and a 1-C charge separated by 2 m.
A 1-C charge a distance of 0.5 m from a -1-C charge.

Answer 1

A 1-C charge a distance of 1 m from a -2-C charge