SCIENCE & LEARNING

Electronics Lab

Learn electronics with 16 short lessons – current, voltage and resistance, Ohm’s law, resistor colours, series and parallel, power and energy, voltage dividers, LEDs, diodes, capacitors and timing, sensors, transistors, logic gates, AC, DC and mains safety, batteries and the multimeter – each linked to its tool. Build circuits on a virtual pegboard and watch them work: batteries, resistors, LEDs that glow (and burn out above 30 mA), bulbs, switches, capacitors, coils and diodes. Every change is solved at once by a circuit engine written in C++ and running in your browser as WebAssembly – tap any point to measure its voltage, see the current in every part, and watch capacitors charge. Also: resistor colour codes both ways, Ohm’s law, LED resistor, series and parallel, voltage divider and RC timing calculators, and a colour-code quiz.

Ready to try · Learn electronics with 16 short lessons – current, voltage and resistance, Ohm’s law, resistor colours, series and parallel, power and energy, voltage dividers, LEDs, diodes, capacitors and timing, sensors, transistors, logic gates, AC, DC and mains safety, batteries and the multimeter – each linked to its tool. Build circuits on a virtual pegboard and watch them work: batteries, resistors, LEDs that glow (and burn out above 30 mA), bulbs, switches, capacitors, coils and diodes. Every change is solved at once by a circuit engine written in C++ and running in your browser as WebAssembly – tap any point to measure its voltage, see the current in every part, and watch capacitors charge. Also: resistor colour codes both ways, Ohm’s law, LED resistor, series and parallel, voltage divider and RC timing calculators, and a colour-code quiz.