open circuit

an incomplete electrical circuit through which no current can flow

Japanese Meaning

開放回路：電気が流れず、部品や接続が不完全な状態の電気回路

The technician discovered an open circuit in the lighting panel that prevented the bulbs from turning on.

技術者は照明パネルで電流が流れない開放回路を見つけ、それが電球が点灯しない原因だった。

Sense（1）

an incomplete electrical circuit through which no current can flow

Turning the switch to "off" makes it an open circuit.

open circuits

（ plural ）