The Diagram Shows One Plate of a Parallel-Plate Capacitor from Within

Multiple Choice

The diagram shows one plate of a parallel-plate capacitor from within the capacitor. The plate is circular and has radius R. The dashed circles are four integration paths have radii of r₁ = R/4, r₂ = R/2, r₃ =3 R/2, and r₄ = 2R. Rank the paths according to the magnitude of around the paths during the discharging of the capacitor, least to greatest.

A) 1, 2 and 3 tie, then 4
B) 1, 2, 3, 4
C) 1, then 2 and 4 tie, then 3
D) 4, 3, 1, 2
E) all tie