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DaveE's latest activity
DaveE
replied to the thread
Engineering
Applying Kirchoff's law for a circuit with 3 DC supplies
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These polarity questions don't really have a correct answer. You can assign polarities (current directions, etc.) at random if you like...
Yesterday, 12:28 AM
DaveE
reacted to
gwnorth's post
in the thread
Other
Electrical Engineering bachelors to Astrophysics PhD -- good idea?
with
Like
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I don't know what the curriculum of EE majors is like where you are, but the ones I'm familiar with are highly structured and don't...
Monday, 10:24 AM
DaveE
reacted to
jbriggs444's post
in the thread
I
Is current truly a scalar quantity or a tensor?
with
Like
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If we are talking about current (current density) in the middle of a conductive block then treating it as a vector would seem quite...
Sunday, 3:29 PM
DaveE
replied to the thread
LASER Applications help please
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Not without you trying first. Please review the homework guidelines Have you tried researching on the web yet? What if you searched for...
Sunday, 1:06 AM
DaveE
replied to the thread
Other
Electrical Engineering bachelors to Astrophysics PhD -- good idea?
.
There aren't many of those. Astrophysics normally requires an intensive physics curriculum, since there are almost no jobs. OTOH, EEs...
Saturday, 10:11 PM
DaveE
reacted to
Baluncore's post
in the thread
Can't share my engineering experience here.
with
Like
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If you have experience, then watch the various forums and answer any question that comes up within your field of expertise. Your posts...
Saturday, 8:15 PM
DaveE
reacted to
BillTre's post
in the thread
Today I Learned
with
Like
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Don't underestimate the smarts of normal people:
Saturday, 3:34 PM
DaveE
replied to the thread
Can't share my engineering experience here.
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Maybe you can share your experience a little bit at a time. Perhaps in more of a question or answer format. Sometimes people need some...
Saturday, 3:09 PM
DaveE
reacted to
Tom.G's post
in the thread
COVID
COVID Virus Lives Longer with Higher CO2 In the Air
with
Like
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Popular, lengthy article with many embedded links, which I have not followed...
Friday, 11:31 AM
DaveE
reacted to
Averagesupernova's post
in the thread
Hydrochloric Acid, NaOH, and English Ivy
with
Like
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I thought I would also point out that I think it is silly to try to clear all of the land on the river bank. Bare ground along a river...
Thursday, 12:42 PM
DaveE
replied to the thread
Cannot lock reference signal on lock-in amplifier
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But in the OP: Thanks for playing... I doubt that experiment needs to be repeated.
Thursday, 1:07 AM
DaveE
reacted to
Orodruin's post
in the thread
Average current on a ring
with
Like
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In particular, I’d expect at least one false answer with the correct physical dimension. This one was just silly. Even if one did...
Jun 5, 2024
DaveE
replied to the thread
Average current on a ring
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Except that that's what instructors do every time they make a good multiple choice exam question. The right answer is the easy part.
Jun 5, 2024
DaveE
reacted to
Baluncore's post
in the thread
How to input and output work in a system at the same time?
with
Like
.
https://en.wikipedia.org/wiki/Maintaining_power I am sure we do, but you need to set some scope for the application. The battery in a...
Jun 5, 2024
DaveE
replied to the thread
Cannot lock reference signal on lock-in amplifier
.
Yes, good idea. You can put a coax tee on the amplifier input and look at the signal with your o'scope with the amplifier load. Use the...
Jun 5, 2024
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