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open circuit
This term is a technical descriptor used primarily in electrical engineering and physics. It describes a state of discontinuity where the path for current is interrupted, effectively acting as an infinite resistance. In practical troubleshooting, it is the opposite of a short circuit, which is an unintended low-resistance path.
Because it refers to a specific physical state of a system, it is used in a literal, technical register. While "open" usually implies accessibility or being "on" in common parlance, in the context of a circuit, an "open" state means the connection is broken and the device will not function.
Meanings
Examples
The light stopped working because there is an open circuit in the wiring.
Check the connection to see if you have an open circuit.
A broken wire creates an open circuit that stops the current flow.
I think we have an open circuit somewhere in the control panel.
The switch is designed to create an open circuit when turned off.
Wait, the power is out. It must be an open circuit.
An open circuit prevents any electricity from reaching the motor.
The technician identified the open circuit using a multimeter.
The technician identified the open circuit using a multimeter.