TechTried-and-true tip
Paperclip switch for a simple electric circuit
Make a simple switch from paperclips and foil for a circuit with an LED and a coin cell.
- Time
- ⏱ 15 min
- Difficulty
- ◆ easy
What you need
- cardboard
- paperclips
- binder clips
- aluminium foil
- 3 V coin cell
- LED
- scissors
- pliers
How to do it
- Place paperclips on the cardboard as arms and fix them with binder clips.
- Fold the second arm over so that both arms touch. This closes the circuit.
- Roll aluminium foil into strings, pull each end through the lower end of a paperclip and press it tight with the pliers.
- Build the switch into the circuit with the coin cell and LED, at any point in the circuit.
Variations
- Push switch (the paperclip closes the circuit only while pressed) and toggle switch.
Sources
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- share.hek.ch (opens in a new tab)
So wird der Stromkreis geschlossen.“; „Du kannst sie aus Alufolie selber machen
