(a) Show that a classical oscillating electric dipole p with fields given by (9.18) radiates electromagnetic angular momentum to infinity at the rate

(b) What is the ratio of angular momentum radiated to energy radiated? Interpret.

(c) For a charge e rotating in the x-y plane at radius ? and angular speed ?, show that there is only a z component of radiated angular momentum with magnitude dLz/dt = ?²k³?²/6??₀. What about a charge oscillating along the z axis?

(d) What are the results corresponding to parts ? and b for magnetic dipole radiation??

Transcribed Image Text:

dL Im[p* x p] 12πεο dt