№ 3 · you build it
Two lights on one path
Put both lights on one path and watch them share.
- 1Tap the battery, then the big resistor.
- 2Tap the resistor, then the red light, then the green light.
- 3Tap the green light, then the battery.
What to look for: Both lights glow — and both are dimmer than one light on its own. They are sharing.