What is the function of a pole in a toggle switch?

The function of a pole in a toggle switch is to move and connect or disconnect a circuit. A toggle switch typically has one or multiple poles, with each pole representing a separate circuit path. When you flip the toggle, it mechanically engages or disengages the contacts within the switch, thereby completing or interrupting the electrical circuit associated with that pole. This is essential in controlling the flow of electricity in various applications, allowing for simple on/off functionality or enabling more complex switching configurations when multiple poles are involved.

The other options do not accurately represent the primary function of a pole in a toggle switch. While a switch can influence current flow or voltage levels indirectly through the circuit it controls, its primary role is the mechanical action of making or breaking connections in the circuit, which is captured by the correct answer.