Questions tagged [thought-experiment]
The thought-experiment tag has no usage guidance.
8
questions
3
votes
3
answers
1k
views
Is it possible to make cathode ray or electron gun without a vacuum?
I stumbled upon this picture on the internet here is the link
https://www.reddit.com/r/ElectroBOOM/comments/16azeq5/cathode_ray_succesfully_shooting_a_plasma_beam_in/
I wasn't able to get info from ...
- 73
0
votes
4
answers
132
views
Building a space heater
I'm building a space heater, not for continuous use, but just as an experiment.
I made a nichrome wire coil that's 3.5 Ω and a fan that blows on it so hot air comes out of the other side of the tube. ...
- 3
2
votes
0
answers
55
views
Extend classic transistor flip-flop to an n-state flip-flop?
There is the classic flip-flop using two transistors. I now tried to extend it to be able to store more than 2 states, and thought it'd be interesting to be able to extend it to 3 or an arbitrary ...
- 721
-1
votes
1
answer
46
views
Subtleties with LTSpice's Arbitrary Sources
Here's my setup:
I'm trying to emulate the circuit to the right with the one on the left. That is, the one on the right is a pre-charged capacitor (node3) being discharged to its capacitor pair via a ...
- 279
9
votes
4
answers
750
views
How long does it take for energy to propagate in a circuit?
The premise
In a recent video by the pop-sci channel Veritasium, the concept of the flow of electricity and energy transmission in a circuit was discussed. In that video a thought experiment is ...
- 572
2
votes
5
answers
2k
views
What happens if you connect a galvanometer to an AC source?
What happens if you connect a galvanometer to an AC source?
I have seen many answers online along the lines of there not being any deflections as the net average current/net average magnetic field is ...
- 143
-8
votes
2
answers
837
views
Can a 'superconductor battery' , theoretically at least, last forever? Even if it is being used? [closed]
One of the amazing 'killer apps' of a cheap, non-toxic, high-temperature superconductor is storing electrical energy in a large current that loops around indefinitely.
If this could be scaled down, it ...
- 231
0
votes
3
answers
290
views
Measuring length of two wires inside copper with a TDR
I have a cable as in the drawing.
The black parts are insulators and the brown parts are copper, so there is a big copper cable and inside are two smaller copper cables.
When the big copper cable is ...
- 375