Question

What is the function of a switch

Answer 1

Hello Mate..
Switch is used to put the current on or off in the circuit.It is also called plug key.
When the key is open ,the circuit is incomplete and no current flows.
When the key is closed ,the circuit is complete and the current flows.

Hope it helps you friend..

Answer 2

A switch opens or closes an electrical circuit. If the circuit is open, no electricity flows. If the circuit is closed, electricity flows through the circuit.

Hope this helps
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