Two in Parallel

Project Number: 52

Description: When you close the switch, both the LED and the horn work. Current flows from the battery through the LED and the horn back to the battery through the switch. Remove the horn and notice that the LED does not change in brightness. In a parallel circuit, the current has more than one path so removing the horn does not affect the LED. The voltage is the same across the LED and the horn, but not the current.

Snappy: The lights in your home are wired in parallel so if one burns out, the others stay on.