Labo Élec
electrical lab simulator
Labo Élec
Labo Élec is free to use in class: project an experiment, set exercises as homework, prepare a measurement session. No account, no installation, on computer and tablet.
The sandbox suits demonstrations: build the circuit live, connect a voltmeter or an ammeter, show the current arrows, and the schematic view draws itself alongside. A circuit exports to a file that can be re-imported or shared.
Every exercise has a direct address to paste into a homework diary or a learning platform: students open it and do it in the lab. Exercises are sorted by chapter and level; many are parametric (values change with every draw), which limits copying. Course sheets list every exercise of their chapter.
The Practice mode offers a session of exercises on one or several chapters, with hints, correction and a report by skill (know, compute, build, measure, analyse). The grade stays on the student's device: nothing is sent to a server.
Fifteen chapters of general electricity in direct current and the basics of AC: units, Ohm's law, power and energy, resistor networks, real generators, Kirchhoff's laws, capacitors, magnetism, induction, alternating current, RLC circuits, measurement. The formula sheet and the glossary serve as reminders.
The site is free, ad-free and collects no personal data (see the privacy page). It runs in a recent browser, on computer or tablet; on a phone, sheets and the formula sheet remain readable. To report an error in an exercise or suggest a chapter, use the contact form at the bottom of the page.