Questions tagged [circuitry]

A question about electronic circuits and logic gates.

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7
votes
3answers
657 views

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 ...
10
votes
2answers
629 views

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 ...
7
votes
1answer
174 views

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 ...
9
votes
2answers
433 views

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 ...
10
votes
4answers
725 views

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 ...
16
votes
3answers
2k views

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). ...
12
votes
3answers
824 views

Day and night of the two timers

            Make a non - 24 - hour day /  night cycle       &...
19
votes
4answers
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 ...
13
votes
3answers
3k views

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....
49
votes
2answers
4k views

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 ...