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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).

9
votes
3answers
301 views

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. ...
9
votes
8answers
326 views

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 ...
8
votes
2answers
233 views

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 ...
27
votes
3answers
923 views

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 ...
15
votes
17answers
2k views

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 ...
18
votes
5answers
909 views

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 ...
10
votes
0answers
455 views

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 ...
4
votes
3answers
456 views

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 ...
23
votes
10answers
2k views

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 ...
7
votes
2answers
847 views

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 ...
4
votes
1answer
281 views

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 ...
10
votes
3answers
1k views

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 ...