- #1

- 3

- 0

## Homework Statement

## Homework Equations

Poynting's Theorem S = 1/μ

_{0}(E x B)

Momentum = p = μ

_{0}ε

_{0}∫ S dτ

## The Attempt at a Solution

My strategy was to treat the hollow sphere as a point charge (by Gauss' Law), so E = 1/4πε

_{0}Q/a

^{2}. I believe the magnetic field would be B = 2/3μ

_{0}M (where M is the magnetic dipole moment per unit volume). For part A, would this be the correct total electromagnetic momentum if I used the formula stated above and the relevant E and B fields. Also, do I have the E and B field formula's correct?