I used the Griffith's book for electrodynamics for my physics undergrad. After finishing the course a year later I ended up tutoring a good friend who was doing the equivalent electrical engineering course. I went over antennas, transmission lines, waveguides, and plane waves at dielectric boundaries. What I remember is that the antenna chapter for E.E. (which is supposedly equivalent to the "Radiation" chapter 11 in Griffiths) was definitely different. We were much more interested in electromagnetic radiation (the source of the radiation), which typically starts with a discussion of the simple oscillating electric dipole (which when in reference to an antenna the infinitesimal oscillating electric dipole is called the "Hertzian dipole antenna".) We went through all of the calculations to get V, A, E, B, S, <S>, and P in physics, in engineering, this was of no interest. These quantities were all pretty much given with little attention to the derivation (which to get V and A such that you can get the rest of these important quantities when discussing radiation/antennas is QUITE nasty btw, in fact the radiation chapter in Griffith's I remember being among the nastiest things we did as undergraduates..) I thought that was fairly crazy. Granted, this was a junior level course in the E.E. department and there was an optional senior level course on antennas in the department, I was still quite surprised however at the complete lack at achieving a "from the ground up" understanding of the material. That's what we gained by using Griffith's (along with other interesting topics in radiation (not discusses by the engineers who were specifically only concerned with the application of antennas specifically) such as breaking radiation, the calculation for the failure of the classical atom due to radiation, etc.) This being said, the engineers weren't without their pluses. Many types of antennas were discussed in addition to the simple case of a Hertzian dipole antenna. Half-wave dipole antennas (which is really just a superposition of many tiny Hertzian dipole antennas), strange antenna designs such as the Yagi antenna, antenna arrays, etc. Now, this was all quite easy to grasp if one understood the workings of the simple Hertzian (a term btw that you wouldn't even know from Griffith's), but still there was a depth of things covered (not necessarily a depth of understanding) that one gained by taking the engineering electromagnetism course. But constantly, all throughout the tutoring session, I was praised for my additional understanding which was simply due to me reciting important explanations from Griffith's (Specifically that the whole idea of radiation and antennas is to eliminate all terms from E and B that don't go as 1/r from the very beginning of chapter 11, among other things..)
Waveguides was a lot more involved in the engineering course, but you weren't required to solve the PDEs that were involved. You did go into a lot more applications of waveguides, there was more discussion on cutoff frequencies, etc. Griffiths only spends a few pages on this.
Transmission lines I don't even remember at all in Griffiths. Basically you had to use this thing called the "Smith Chart" to solve an algebraic equation relating impedence and I think reflection coefficients for the surface of some transmission line. These were engineering concerns that wouldn't really show up in a physics course, but is very important for engineers, so yeah you will certainly be missing out on this. It was a bread and butter topic for the engineers, it wasn't trivial, you'll have to read this section in the engineering book after you've taken the Griffith's course (if you decide to do that), and be careful when doing so (Smith chart is kind of weird.) If you've seen the Cornu spiral in optics to solve the Fresnel integrals it's about as complicated as that (which would be pretty annoying to learn on your own.)
Plane waves at dielectric boundaries was covered in almost exactly the same fashion as in Griffiths if I remember right.
That was my experience. Basically if you have gone through Griffiths (and understood it all), you will easily be able to demolish the engineering material (but not without reading it!) That being said, you DO need to spend the time to read through the engineering book afterwards to pick up these additional engineering topics. The additional antennas, the Smith chart, etc. However, you will have an understanding in electromagnetism theoretically that will be unparalleled by the average engineering students. Also you will have seen the unification of the magnetic and electric fields through special relativity, including a tensor treatment that combines the electric and magnetic field into one special object called the "electromagnetic field tensor".
It's theory and understanding versus application and breath of material, plain and simple. It's also using 'i' to denote imaginary numbers versus 'j'... There is somewhat of a language barrier between physics and E.E. students..
