Sorry, i was only referring to the US. However I would still think you would be at a disadvantage for a professorship. What is confusing you? If you feel you can earn a Ph.D. I think you should try. Talk with your professors about different promising areas ( areas that have a lot of applications) but you will probably not be seeking job for 4 or 5 years from starting your doctorate and who knows for sure what will be a good opportunity. try to develop skills that have general applicability if possible skills that you can use both in teaching, and research in physics or engineering.