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Results tagged with physics
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user 4269
A puzzle relating to physics equations or physical principles such as energy, entropy, and classical/quantum mechanics.
8
votes
4
answers
2k
views
Use a circuit to multiply two resistances
Mathematically (for those who don't want to bother about the physics),
$$s(a,b)=a+b$$
$$p(a,b)=\frac{ab}{a+b}$$
Using the two functions given above, two variables $x$ and $y$ and any other numbers, …
- 7,166
20
votes
4
answers
2k
views
How many boxes are conductors?
The Question
(Some knowledge of potential difference, resistor combinations, etc. required)
You have 1000 boxes. Some (or none) of them are conductors (of negligible resistance). The rest are insula …
- 7,166