GEOLOGY

Detailed explanation-1: -Switch is a device which can open or close a circuit.

Detailed explanation-2: -A device designed to open or close a circuit under controlled conditions is called a switch.

Detailed explanation-3: -electric switch, device for opening and closing electrical circuits under normal load conditions, usually operated manually. There are many designs of switches; a common type-the toggle, or tumbler, switch-is widely used in home lighting and other applications.

Detailed explanation-4: -An open circuit is a circuit where the path has been interrupted or “opened” at some point so that current will not flow. An open circuit is also called an incomplete circuit.

Detailed explanation-5: -A switch can only exist in one of two states: open or closed. In the off state, a switch looks like an open gap in the circuit. This, in effect, looks like an open circuit, preventing current from flowing. In the on state, a switch acts just like a piece of perfectly-conducting wire.