When we press the switch’s button, it opens or closes the electric circuit.

To return to the primitive position, we have to press the switch’s button again.

Check with a multimeter that between points 1 and 2 there is an open circuit when at rest, and that when the switch is pressed, a permanent short circuit appears between 1 and 2.
Press again, and see that an open circuit reappears when the position is at rest.
TURNING ON A LIGHTBULB
While the switch is active, the voltage V of the battery reaches the lightbulb and turns it on, even when we stop pressing the switch. When we press the switch again, the lightbulb turns off.

Application with minikits: We use 1 4,5 V battery holder, 2 minikits, and 1 connection cable.
Mark on the scheme each cable that we place.
