Noun
/kloʊzd ˈsɜr.kɪt/
The term "closed circuit" refers to a type of electrical circuit in which the current flows through a complete loop, allowing it to function correctly. In a broader context, it is often used to describe systems or networks that are not open to the outside; for example, closed-circuit television (CCTV) refers to video surveillance where signals are transmitted to specific monitors and not made public.
"Closed circuit" is commonly used in both oral and written contexts, particularly in discussions involving electronics, communications, and security systems. It appears more frequently in technical writing and discussions or when referring to surveillance and monitoring setups.
Команда безопасности установила систему замкнутого круга для мониторинга главного входа.
During the experiment, we used a closed circuit to measure the electrical flow accurately.
Во время эксперимента мы использовали замкнутый контур, чтобы точно измерять электрический поток.
The school has a closed circuit television network to ensure student safety.
The term "closed circuit" can also appear in idiomatic expressions, particularly regarding privacy, exclusivity, or limited access. Here are a few examples of such expressions:
"Мы работаем в замкнутом круге, так что, пожалуйста, держите это при себе."
"In a closed circuit, information only travels between select individuals."
"В замкнутом круге информация передается только между избранными людьми."
"They prefer to keep their discussions on a closed circuit to avoid leaks."
"Они предпочитают держать свои обсуждения в замкнутом круге, чтобы избежать утечек."
"The charity organization works in a closed circuit, helping only those in their network."
"Благотворительная организация работает в замкнутом круге, помогая только тем, кто есть в их сети."
"This project is on a closed circuit, and no unauthorized access is allowed."
The term "closed circuit" is derived from the combination of "closed," meaning shut off from passage or access, and "circuit," which originates from the Latin word "circuitus," meaning a going around. The phrase has been used since the early 20th century in various technological contexts.