When the switch is tuned off, the circuit is open so the electrical energy stops flowing. Circuit symbols are really useful when designing the electrical circuits inside the things we use.

This ON OFF touch switch circuit is based on the well known timer IC 555 (IC1), which drives a relay that acts like a switch. The metal surfaces can have what form we want, but it should be clean and ...

When a switch is open (off), there is a gap in the circuit. Electricity cannot travel around it and a components in the circuit will turn off. When a switch is closed (on), the circuit is complete.