What term is used to identify a circuit that is switched by a relay?

The term used to identify a circuit that is switched by a relay is referred to as the controlled circuit. In the context of relay operation, the relay functions as a switch that opens or closes the controlled circuit, allowing or preventing current flow based on the state of the relay. When the relay coil is energized, it activates the mechanism that connects or disconnects the controlled circuit, thus controlling the operation of various devices or components connected to that circuit.

Understanding the role of the controlled circuit is crucial for aircraft armament systems, as it encompasses the elements that are directly influenced or regulated by the relay’s action, facilitating reliable and efficient operation of armament systems or other electrical components in the aircraft.