Three-way Switch or How To Turn a Light On or Off From Either End of A Long Hallway Regardless Of The Position Of The Other Switch.

An interactive switch, battery and lamp circuit built in the DCACLab online simulator by Sam Watson. Open it to run the simulation and measure it.

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What's inside

1× Battery (1 V)
2× Switch
1× Lamp

About

By Sam Watson
Saved December 24, 2014 · updated January 15, 2026
7,661 views
Page: dcaclab.com/circuits/10220-three-way-switch-or-how-to-turn-a-light-on-or-off-from-either-end-of-a-long-hallway-regardless-of-the-position-of-the-other-switch

Embed this circuit

<iframe src="https://dcaclab.com/experiments/10220-three-way-switch-or-how-to-turn-a-light-on-or-off-from-either-end-of-a-long-hallway-regardless-of-the-position-of-the-other-switch/iframe" width="560" height="410" frameborder="0"></iframe>

Cite: Watson, S. (2014). Three-way Switch or How To Turn a Light On or Off From Either End of A Long Hallway Regardless Of The Position Of The Other Switch. DCACLab. https://dcaclab.com/circuits/10220-three-way-switch-or-how-to-turn-a-light-on-or-off-from-either-end-of-a-long-hallway-regardless-of-the-position-of-the-other-switch