A solid insulating sphere of radius carries electric charge (Q) uniformly distributed throughout its volume. Concentric with the sphere is a conducting spherical shell with no net charge as shown in Figure OQ24.9. The inner radius of the shell is , and the outer radius is . No other charges are nearby.
(a) Rank the magnitude of the electric field at points A (at radius ), B (radius ), C (radius ), and D (radius ) from largest to smallest. Display any cases of equality in your ranking.
(b) Similarly rank the electric flux through concentric spherical surfaces through points A, B, C, and D.
