Topics · Systems: Electrical Circuits · Explorer
Circuit Explorer
Switch it on, add bulbs and batteries, and swap between series and parallel. Tap a bulb to blow it. Then try the challenge: predict what happens before you see it.
⚡ Circuit Explorer
The switch is open. There is a gap in the circuit, so no electricity can flow.
Each lit bulbOff
Normal = one bulb on one battery. Tap a bulb to blow it.
💡 Bulbs
2 bulbs
🔋 Batteries
1 battery
In a row: pushes add up.
🧠 Predict, then try
6 questions like the ones in exam papers. Guess first — then watch the circuit show you.
What to notice
- More bulbs in series → each bulb dimmerSeries bulbs share one path, so they share the push from the batteries.
- More bulbs in parallel → each bulb the sameEach branch gets the full push. Parallel bulbs are not brighter than one bulb alone — just as bright.
- One bulb blows in series → all go outThe blown bulb is a gap in the only path. In parallel, the other branches stay lit.
- Batteries in series → brighter; in parallel → same, but longerBatteries in a row add their pushes. Side by side they push like one battery but last longer.
The full explanation, with the mistakes papers try to catch: Electrical circuits: series and parallel →