An electric dipole rotates at constant angular velocity in the x y plane. (The charges, q , are at the magnitude of the

An electric dipole rotates at constant angular velocity ω in the x y plane. (The charges, ±q, are at  the magnitude of the dipole moment is p = 2qR.)

(a) Find the interaction term in the self-torque (analogous to Eq. 11.99). Assume the motion is nonrelativistic (ωR ≪ c).

(b) Use the method of Prob. 11.20(a) to obtain the total radiation reaction torque on this system.

(c) Check that this result is consistent with the power radiated (Eq. 11.60).

 

Reference equation 11.60

  

Reference equation 11.99

  

It = +R(cos wt x + sin oot );