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Circuit Diagram Constructor

26 Mar 2026 - Seng Kwang Tan

16 Circuits IP4 12 DC Circuits
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For the longest time, Physics teachers have had to either create circuit diagrams painstakingly using Microsoft Word or using LaTeX. However, recently String.sg shared the work of a primary science teacher Julienne, from Rosyth School - a circuit diagram builder that can be accessed at https://diagrams.string.sg/ This is a very elegant and intuitive way of creating circuit diagrams.

I went ahead and added some more circuit symbols as well as labelling functionality, including the use of Latex for symbol such as $\Omega$.

The symbols are based on the Association for Science Education publication Signs, Symbols and Systematics (The ASE Companion to 16-19 Science, 2000).

This app can also be embedded into SLS directly using the URL (https://physicstjc.github.io/sls/circuit-diagram/) as it is whitelisted. This will allow students to create their own circuit diagrams, and export as a png file for submission.

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