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  2. Closed-circuit television - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television

    Closed-circuit television (CCTV), also known as video surveillance, [1] [2] is the use of closed-circuit television cameras to transmit a signal to a specific place on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point , point-to-multipoint (P2MP), or ...

  3. Closed circuit - Wikipedia

    en.wikipedia.org/wiki/Closed_circuit

    Closed-circuit radio; Closed circuit breathing apparatus, commonly known as rebreathers for portable units, and as component parts of life-support systems for more complex equipment. Closed Circuit, a 1978 Italian film; Closed Circuit, a 2013 British thriller film; An electric circuit is a "closed circuit" if it contains a complete path between ...

  4. Closed-circuit television camera - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television...

    A closed-circuit television camera is a type of surveillance camera that transmits video signals to a specific set of monitors or video recording devices, rather than broadcasting the video over public airwaves.

  5. Closed Circuit (2013 film) - Wikipedia

    en.wikipedia.org/wiki/Closed_Circuit_(2013_film)

    Closed Circuit is a 2013 political thriller drama film directed by John Crowley and written by Steven Knight, released on August 28, 2013. [3] The film stars Eric Bana , Rebecca Hall , Ciarán Hinds , Jim Broadbent , and Riz Ahmed .

  6. Pay-per-view - Wikipedia

    en.wikipedia.org/wiki/Pay-per-view

    Pay-per-view (PPV) is a type of pay television or webcast service that enables a viewer to pay to watch individual events via private telecast.. Events can be purchased through a multichannel television platform using their electronic program guide, an automated telephone system, or through a live customer service representative.

  7. Electrical contact - Wikipedia

    en.wikipedia.org/wiki/Electrical_contact

    An electrical contact is an electrical circuit component found in electrical switches, relays, ... the switch is closed; when the contacts are separated, ...

  8. Electrical load - Wikipedia

    en.wikipedia.org/wiki/Electrical_load

    Whereas the voltage source by itself was an open circuit, adding the load makes a closed circuit and allows charge to flow. This current places a voltage drop across R S {\displaystyle R_{S}} , so the voltage at the output terminal is no longer V S {\displaystyle V_{S}} .

  9. Electrical network - Wikipedia

    en.wikipedia.org/wiki/Electrical_network

    A simple electric circuit made up of a voltage source and a resistor. Here, =, according to Ohm's law. An electrical network is an interconnection of electrical components (e.g., batteries, resistors, inductors, capacitors, switches, transistors) or a model of such an interconnection, consisting of electrical elements (e.g., voltage sources, current sources, resistances, inductances ...