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by krapht 1917 days ago
> (I'm a physicist who transitioned to working as an EE. I have never had a single EE course, and yet I find myself with no obvious deficits compared to my colleagues who have.)

Not to dunk on the rest of your reply, which I agree with, but there is a humongous overlap between your typical undergraduate physics and electrical engineering degree, and I think you're able to be successful because they're so similar. Academically, the required courses are mostly identical until your 3rd year and if you choose an RF, microwave, or semiconductor physics specialization it's just more of the same applied physics, so it would make sense you would easily be able to pick up the concepts necessary with experience.

3 comments

No. I disagree, and I’m a Physics SB and PhD (lasers). EE is a discipline unto itself. A stack of physicstextbooks and coursework is useless when you need to build a circuit that does what you need. Indeed, even writing down the desired circuit specs in a reasonably professional manner has zero overlap with physics.
If it's just circuit design, the difference between an EE and a physicist is 6-9 credit hours of courses. You will both share all the necessary prerequisites in mathematics (mostly Fourier analysis, linear algebra, basic statistics, and differential equations) and electromagnetics.

New graduates in EE also can't do the things you listed :)

6-9 credit course of courses and you’re a circuit designer? You are dreaming. Which capacitors are used for what function? What kind of trouble can you get into if your comparator is too fast? Do they tell you that a 7800 series regulator needs a load? Going to school is good. But if the alternative is 6-9 course hours, I’ll get further with scope, meter, soldering iron, app notes, and LTSpice in the same time than that student. And I assure you, from the bottom of my heart, as a near-expert in both, that the Fourier analysis in quantum mechanics, solid state physics, optics, etc. bears little resemblance to that used in signals and systems and DSP. LITTLE. RESEMBLANCE.
> New graduates in EE also can't do the things you listed :)

That was the spirit of my point, yes :)

More than once I've heard a coworker complain that "I wish I had learned about that in school instead of [filler course so useless that I forgot what they said]."

Very good point. Often I think the hardest part about being an EE is using our CAD tools.
Also perhaps units conventions etc may be different in EE and Physics, like use of Gaussian units in electrodynamics in Physics, and also things like the mysterious 'Z'-transform that seems to pervade much of EE.
Gaussian units seem to be on their way out. I, for one, won't miss them. (Or cgs.)

The Z-transform is much more related to the others than is clear at first glance. This post on transforms [0] from the The n-Category Café is fascinating, and my go-to for understanding what the Laplace transform really is, even if I don't quite grasp many things in the post. (And I also have a math degree! But not a graduate one in active use, as most of the people around there do.)

https://golem.ph.utexas.edu/category/2019/07/what_is_the_lap...

> the Laplace transform is really just a generalization of the familiar Laurent series representation of complex analytic functions, but where the exponents are allowed to be non-integers and to “vary continuously” rather than discretely.

I understand some of these words... they're very familiar to me...

I'm saying this as someone who's dealt with the discrete and continuous time Fourier transforms, and Z-transform, and wants to get into Laplace transforms.

https://golem.ph.utexas.edu/category/2018/02/mlab.html

it might as well be from a random text gwnerator

Gaussian units make physics prettier.

“Avoid for new designs”

Only now I had noticed, in the Gaussian system, the unit for capacitance is centimeters.
Exactly. Quick now, how many farads in a cm?
I have undergrad degrees in EE and physics. There is barely any similarities besides a class or two in electrodynamics.

I even went a step further with how involved with physics I was during the EE degree and specialized in RF; hardly any of that was covered in my physics degree.

I think it’s eye opening that physicists cannot explain how a computer operates physically lol
> but there is a humongous overlap between your typical undergraduate physics and electrical engineering degree

As someone who has a degree in both: Hard disagree. The physics curriculum had one course on circuits/electronics combined, and they covered almost nothing practical when it came to tools like oscilloscopes, etc. Few physicists I know have heard of "3db point". No statistics in the physics curriculum (no, quantum mechanics and stat mechanics don't count). Absolutely nothing with regards to digital, communications, or control theory.

The only real overlap was math, EM and semiconductors. Most people who get an EE degree are not targeting that world.