Circuit Lab

Place batteries, resistors, LEDs, switches and meters on the board; watch the current with a real DC solver and solve 10 missions. Your progress, achievements and best scores are saved in your browser.

Open in new tab

LEVEL Intermediate TIME 20-40 min // TOPICS Ohm's lawSeries and parallel circuitsVoltage dividerLED current limitingPower and heating

// OTHER SIMULATIONS

36 kV Substation & SCADA Operator Operate 36 kV MV substations, manage transformers and bus couplings with LOTO safety interlocks. Experience SCADA operations with live single-line diagrams, relay fault scenarios, and realistic switchgear audio. Intermediate · 20-40 min Logic Gate Puzzles Build the given truth table with AND, OR, NOT, XOR and NAND gates across 16 levels; earn three stars with the fewest gates. Intermediate · 20-40 min Panel Master Choose the breaker, RCD and cable size for each load of a dwelling; learn why a wrong choice fails, with reasons. Advanced · 15-25 min Interactive C++ Course An 18-lesson C++ course in your browser where you earn XP: explanations, code, output prediction and bug hunting. Beginner · 30-45 min Virtual Oscilloscope Measure waves from a signal generator on a 2-channel scope with XY mode and cursors; solve 8 measurement missions. Intermediate · 15-30 min Cyber Intelligence Simulation 10-question rounds from a 60-question pool: hardware, networking, electrics, software and AI; timer, combo and lifeline. Beginner · 5 min (tur) Systems Engineering Simulator Clear bottlenecks during an 8K render, upgrade the hardware and keep the system alive for 10 minutes without a crash. Intermediate · 8-10 min