Series and Parallel Lamp Circuits
Two lamp circuits side by side: a 6 V battery with two 0.9 Ω lamps in series, and a 3 V battery with two 0.9 Ω lamps in parallel. Compare the currents and…
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On the left, two lamps share one path, so the same current (about 3.3 A) flows through both and the 6 V divides between them. On the right, each lamp has its own branch across the 3 V battery and the battery supplies the sum of the two branch currents (about 6.5 A).
Each lamp ends up with about 3 V across it in both circuits, so all four glow with nearly the same brightness. Remove one lamp from each circuit to see the difference between series and parallel.
What's inside
- 2× Battery
- 2× Switch
- 4× Lamp
