DaveE's latest activity
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DaveE replied to the thread Electrical Unused light switch in the living room?.Since it's a town house, you might try asking your neighbors if they have one too and what it does. -
DaveE reacted to Averagesupernova's post in the thread Electrical Unused light switch in the living room? with
Like.
It's not uncommon for a receptacle to be split. For instance the bottom may be live all the time but the top is controlled by the switch. -
DaveE reacted to berkeman's post in the thread Electrical Unused light switch in the living room? with Like.
How do you know it is unused? When you pull the plastic faceplate off, do you see any wires going to the switch? (Don't pull the...
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DaveE reacted to gmax137's post in the thread Other Don’t have a high enough IQ for physics so I want to give up with Like.
I think everything in your post (after the first sentence) is incorrect. Here's what I know: Online IQ tests are meaningless Those...
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As noted above the conventional method for the determination of statistical uncertainty for a function is $$\Delta f = \sqrt{...
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DaveE reacted to BillTre's post in the thread I Potential biosignature found in Mars rock with
Informative.
Here is some related information: One of the main origin of life on earth scenarios involves the interaction of fluids from... -
DaveE reacted to Ranger Mike's post in the thread Thread No-Go plug gage allows 3 turns to enter. That's too many! with Informative.
As with all things Government is involved with, confusion. The Old ANSI standard was 1 1/2 turns. two turns Max. Then the newer standard...
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DaveE replied to the thread 3-terminal device external modeling.I fail to see the value of hypothetical questions like this. Your "new type of electronic device" is completely undefined. Suppose it...
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DaveE reacted to .Scott's post in the thread Question about the voltage between two charged capacitors with Like.
Are you also connecting A1 and B2 together? If it's not a full electrical circuit, the voltmeter will likely read zero. Also, this...
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DaveE replied to the thread 3-terminal device external modeling.You can't really describe a network without seeing what's inside of it. For a passive LTI network you should be able, with source...
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DaveE replied to the thread 3-terminal device external modeling.I think the only thing you can say for the most general case is that the terminal currents all sum to zero (KCL) and that there are two...
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This is only correct if you view ##\Delta L## and ##\Delta B## as fixed numbers. In a setting where you have estimated errors, it is...
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Agreed. When rounding off to the so-called appropriate number of sig figs what you are really saying is "Don't worry about the...
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DaveE replied to the thread Errors and significant figures.When I was a practicing EE, none of this ever made sense to me. These problems rarely mention the probability distribution of the data...
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DaveE reacted to FactChecker's post in the thread Finding the nth roots of a complex number with Like.
By the time one takes complex analysis, he should be comfortable leaving it as ##\sqrt 2##. Leave the approximation accuracy for the...