Calculate W, using both Eq. 4.55 and Eq. 4.58, for a sphere of radius R with frozen-in u...

Calculate W, using both Eq. 4.55 and Eq. 4.58, for a sphere of radius R with frozen-in uniform polarization P (Ex. 4.2). Comment on the discrepancy. Which (if either) is the “true” energy of the system?

Reference equation 4.55

Reference equation 4.58

Reference example 4.2

Find the electric field produced by a uniformly polarized sphere of radius R.