BackgroundSwitches provide an easy way to open and close an electrical circuit.
Materials Needed2 batteries in holders
1 paper clip
2 light bulbs
2 wires with washers
Procedure1. Assemble the simple circuit with 2 batteries. Open and close the wires to turn the bulb off and on.
2. Now wire in the paper clip as a switch as shown and use it to turn the light on and off.
QuestionWhy does the light go out when you move the switch?
Posted by Jay Roberts at 04:24 AM | Permalink