What Is A Switch

The word switch is interpreted as on and off. It also refers to an electronic component that can open a circuit, interrupt current, or cause it to flow to other circuits. The most common switches are human-operated electromechanical devices that have one or more electrical contacts. The "closed" of the contact means that the electronic contact is conducting, allowing current to flow; the "open" of the switch means that the electronic contact is not conducting to form an open circuit, which does not allow current to flow.