Source google image: http://2.bp.blogspot.com/_bD8s6Il3S48/S79G-5AhFgI/AAAAAAAAAWs/RuWQf42GxyI/s1600/Interrupteur_simple.jpg
Schéma circuit électrique simple
Source google image: http://2.bp.blogspot.com/_bD8s6Il3S48/S79G-5AhFgI/AAAAAAAAAWs/RuWQf42GxyI/s1600/Interrupteur_simple.jpg