Learn / Circuits / Base / One switch controls both: light + buzzer in parallel
BASE
BEGINNER
Ages 8+
4:44
One switch controls both: light + buzzer in parallel
Where you place the switch decides what it controls. In the battery line, it rules every branch at once.
VIDEO · exercise walkthrough · chapters: parts · build · test · why
Blocks you need
Battery · LED · Buzzer · Switch · 4 wires
You'll understand
Switch placementBranch controlCircuit design choices
Steps
1Build the parallel light + buzzer circuit from exercise two.
2Put the switch in one branch — it controls only that output.
3Move it into the battery line — now it controls both.
4Design task: make the light always-on but the buzzer switchable.