Physics & How Things Work

How Circuits Light Up

Name: How Circuits Light Up
Duration: 78 s
Description: Electricity is shy — it only flows in a complete loop. Break the loop, nothing works.

Electricity is shy — it only flows in a complete loop. Break the loop, nothing works.

Flick the switch UP — the bulb lights. Flick it DOWN — the bulb dies. What is that little lever actually DOING inside the wall?

Concepts you just met

Closed LoopsSeries vs ParallelSwitchesGrounding