Questions tagged [circuitry]
A question about electronic circuits and logic gates.
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Hiking Circuits
This is part 27 of the puzzle series Around the World in Many Days. Each part is solvable on its own.
Dear Puzzling,
How have you been? Today I have toured the coastal towns and islands of a major ...
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The Resistor Game Show
You were one of $n$ contestants chosen to participate in a game show. Each of you will secretly select a resistor of your choice, with a resistance between 0.01 and 10,000,000 ohms. Once everyone has ...
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Electrical Roughing-ins
The 27 junction boxes at the ends of electrical conduits must all have a green and red wire taps for the lighting fixtures. Only one wire fits the conduits for safety. The wires should be connected on ...
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Homeostasis logic/math problem
I'm trying to derive a generic formula for a programming algorithm. I might be overthinking this or underthinking it... we'll see.
Each of the triangles below represents a container. Each container ...
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Troubles with a Rogue Circuit
Edit : Made the final step to the solution easier to solve, also added hint.
I’m not quite sure what’s happening over here, but I believe you guys might be able to help.
I started noticing ...
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Proof by induction without words
This seems more like a proof about induction
than a proof by induction.
But what is this proof really about?
That is, what circuit with an inductance of 4 henries between A and B
does that ...
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A big logical mess
I found a drawing under a stack of books in my house. It looked like a logical circuit diagram, so I decided to make it. I assumed that I was allowed to put anything in the boxes with the question ...
- 22k
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Prime Circuit Optimisation
It's logic gates time!
You are only allowed to use NOT, OR, AND, XOR gates, accepting 1,2,2,2 inputs respectively.
PART ONE
You must build a circuit with $n$ inputs, and 1 output.
The output must be ...
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3 gates and a drop of acid
I was playing with some electronics recently, and I had bought three logic gates to make a small flat device that took two inputs, I1 and I2, and returned them in the opposite order (I2 then I1).
...
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Third timer's a charm
Three motorized 24-hour
light timers
are arranged between a power outlet and a light bulb,
with timer A parallel to a daisy
chain
of timers B and C.
For these timers, devise schedules
that ...
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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 ...
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Invert three inputs with two NOT gates
You've just been hired by Widget & Co. to prototype a new electrical circuit for their line of impenetrable puzzle locks. As part of this circuit, your boss asks you to invert three boolean inputs....
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A Robot's Last Words
There, spread out all over the floor, were the mechanical pieces of a robot. Something had torn it apart, and the debris spanned a radius of a few meters. There was no sign of what might have caused ...
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