Electronic Circuit Simulator in the Browser
While we're on the subject, allow me to plug Electrical Age: <a href="https://electrical-age.net/" rel="nofollow">https://electrical-age.net/</a><p>It's a minecraft mod, yes. It's also a fully functional DC electrical simulation, with realism as a primary focus. Any inaccuracies are either strictly required (= it runs at 20Hz for most purposes), or allowances for decent gameplay.<p>(Or bugs. Those are probably my fault.)