Questions tagged [electrical-engineering]

This tag indicates that the challenge involves electrical components such as resistors in some way (e.g. counting the total resistance of a set of resistors).

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16 votes
1 answer

Total resistance from unit resistors

This problem is based on, A337517, the most recent OEIS sequence with the keyword "nice". \$a(n)\$ is the number of distinct resistances that can be produced from a circuit with exactly \$n\...
Peter Kagey's user avatar
  • 8,679
12 votes
9 answers

Simulate D Flip-Flop

Objective Simulate an edge-triggered D Flip-Flop. What is D Flip-Flop? A D flip-flop is an electronic digital device that outputs an inputted data (abbr. D) with synchronization to a clock (abbr. ...
Dannyu NDos's user avatar
  • 5,941
22 votes
48 answers

Parallel resistance in electric circuits

Introduction: Two resistors, R1 and R2, in parallel (denoted R1 || R2) have a combined ...
Stewie Griffin's user avatar
9 votes
3 answers

Is the Circuit Possible?

Write a program or function that takes input: all resistors available and a resistance value and outputs a truthy value of whether or not it is possible to get the resistance by using those resistors. ...
Vedant Kandoi's user avatar
9 votes
8 answers

Convert AWG to Inches

AWG (American Wire Gauge) is a common way of specifying wire sizes. Your task in this challenge is to convert from a given gauge to the diameter of the wire in inches. The size in inches for the ...
Maltysen's user avatar
  • 25.7k
8 votes
2 answers

Generate E-series of preferred numbers

Resistors and other electronic components are typically manufactured with values that conform to one of the E-series of preferred numbers. IEC 60063 defines the following E-series: E6: 10 15 22 33 ...
Digital Trauma's user avatar
28 votes
3 answers

Volts, Amps, Watts and Ohms: given two, calculate the other two

Ohm's law tells us that the current (I) in amps flowing through a resistance (R) in Ohms when a voltage (V) is applied across it is given as follows: V = I / R ...
Digital Trauma's user avatar
15 votes
17 answers

Apply Kirchhoff's law

Kirchhoff's law says that when you sum up all the currents (positive for the currents going to a junction, and negative for current leaving a junction), you will always get as result 0. Look at the ...
Sixty-six's user avatar
  • 167
17 votes
5 answers

What's the voltage over each component?

The picture below shows a RLC circuit. A RLC circuit is an electrical circuit consisting of a resistor (R), an inductor (L), and a capacitor (C), connected in series or in parallel. (1) In order to ...
Stewie Griffin's user avatar
11 votes
1 answer

mini SPICE solver

SPICE is an electrical circuit simulation program originating from UC Berkeley. Your goal is to implement a minimalistic version which can solve for the nodal voltages and branch currents of a circuit ...
helloworld922's user avatar
4 votes
4 answers

Evaluate a Linear Feedback Shift Register

Introduction The Fibonacci Linear Feedback Shift Register (LFSR) is a digital circuit which generates a stream of random-looking bits. It consists of several 1-bit flip-flops in a row, with certain ...
phosgene's user avatar
  • 1,175
23 votes
10 answers

Resistors of Unusual Value

Introduction When building an electronics project, a schematic may call for a resistor of an unusual value (say, 510 ohms). You check your parts bin and find that you have no 510-ohm resistors. But ...
phosgene's user avatar
  • 1,175
7 votes
2 answers

Build a program that creates a minimal one-ohm resistor diagram for a given resistance

You are a contractor for a company who designs electrical circuits for the various products they make. One day, the company accidentally gets a huge shipment of one-ohm resistors and absolutely ...
Joe Z.'s user avatar
  • 34.9k
5 votes
1 answer

Build an evaluator for nontrivial resistance diagrams

There is already a problem on here about calculating the total resistance of a resistor diagram. However, that problem deals only with series-parallel diagrams, which are trivially reducible. Here I ...
Joe Z.'s user avatar
  • 34.9k
10 votes
2 answers

Calculating Resistance (Nerd Sniping)

Good Afternoon Golfers, Our challenge for today is inspired by XKCD comics 356 and 370. We're going to write a program to calculate the resistance of a group of resistors. A forewarning that this is ...
lochok's user avatar
  • 3,189