This comment addresses the Jim?nez et al paper (2008 Eur. J. Phys. 29 163?75
[http://dx.doi.org/10.1088/0143-0807/29/1/017] ). We correct these authors? expressions for the
electric field and the Poynting vector, and also correct their expressions for the magnetic field.
Contrary to the authors, we find that the contribution of the second term in Jefimenko?s formula for
the electric field is not zero. These corrections in no way affect the main points made by the
authors of the aforementioned paper, and help strengthen their work.