Chapter 19, Problem 18PCE

Five point charges, q₁ = +q, q₂ = +2q q₃ = −3q, q₄ = −4q, and q₅ = −5q, are placed in the vicinity of an insulating spherical shell with a charge +Q distributed uniformly over its surface, as indicated in Figure 19-39. Rank the point charges in order of increasing magnitude of the force exerted on them by the sphere. Indicate ties where appropriate.