What is the symbol of a closed switch?

The symbol of a closed switch in an electrical circuit is typically represented by a straight line (or a solid rectangle) that connects the two terminal points of the switch. This indicates that the switch is in the "ON" or closed position, allowing current to flow through the circuit. When the switch is closed, it completes the electrical path, allowing electricity to flow from one terminal to the other. In contrast, an open switch is represented by a gap or break in the line, indicating that the switch is in the "OFF" position, and no current can flow through it.