Circuit 5: The Series Double Switch
This circuit illustrates redundant control and the “AND” function.
For this circuit, you will need the battery, two switches, one socket and one lightbulb.
This circuit looks like:
Follow the video below to build this circuit on your own workbench.
video
Understanding This Circuit
- With your finger trace the path of the electricity starting from the battery and returning to the battery.
- Is there any possible path for the circuit to close (and the light to light), if either one of the switches is open?
- Can you think of a situation where you would want two switches to both be closed before something happens?
Feel like you've got this circuit mastered? Move to the next page and let's build another one.