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  2. Polarity symbols - Wikipedia

    en.wikipedia.org/wiki/Polarity_symbols

    The adapter typically supplies power to the device through a thin electrical cord which terminates in a coaxial power connector often referred to as a "barrel plug" (so-named because of its cylindrical shape). The polarity of the adapter cord and plug must match the polarity of the device, meaning that the positive contact of the plug must mate ...

  3. NEMA connector - Wikipedia

    en.wikipedia.org/wiki/NEMA_connector

    The ground pin is round, like those on straight-blade NEMA grounding devices. Referring to the picture, the orientation is the same as the NEMA 5 plug and receptacle, with the neutral blade on the lower right. Adapters are available with the TT-30P plug on one side and a 5-15R or 5-20R receptacle on the other side.

  4. EmPower (aircraft power adapter) - Wikipedia

    en.wikipedia.org/wiki/EmPower_(aircraft_power...

    Apple offered an EmPower MagSafe power adapter for their MacBook, MacBook Pro, and MacBook Air lines of notebooks, and also included a cigarette lighter socket adapter. However, this system would only run the computer without charging the computer's battery, and Apple warned users to never plug this device into a car's cigarette lighter outlet. [5]

  5. Electrical connector - Wikipedia

    en.wikipedia.org/wiki/Electrical_connector

    A jack is a connector that installs on the surface of a bulkhead or enclosure, and mates with its reciprocal, the plug. [36] According to the American Society of Mechanical Engineers , [ 37 ] the stationary (more fixed) connector of a pair is classified as a jack (denoted J), usually attached to a piece of equipment as in a chassis-mount or ...

  6. AC adapter - Wikipedia

    en.wikipedia.org/wiki/AC_adapter

    An AC adapter or AC/DC adapter (also called a wall charger, power adapter, power brick, or wall wart) [1] is a type of external power supply, often enclosed in a case similar to an AC plug. [2] AC adapters deliver electric power to devices that lack internal components to draw voltage and power from mains power themselves.

  7. Adapter - Wikipedia

    en.wikipedia.org/wiki/Adapter

    A passive electric power adapter, sometimes called a travel plug or travel adapter, allows using a plug from one region with a foreign socket. As other countries supply 120-volt, 60 Hz AC, using a travel adapter in a country with a different supply poses a safety hazard if the connected device does not support both input voltages.

  8. AC power plugs and sockets - Wikipedia

    en.wikipedia.org/wiki/AC_power_plugs_and_sockets

    These are used for both 220-volt and 127-volt regions of the country, despite the IEC 60906-2 recommendation that NEMA 5-15 be used for 120 V connections. There are two types of sockets and plugs in NBR 14136: one for 10 A, with a 4.0 mm pin diameter, and another for 20 A, with a 4.8 mm pin diameter. [ 38 ]

  9. File:World map of electrical mains power plug types used.svg

    en.wikipedia.org/wiki/File:World_map_of...

    Indonesia uses Schuko plug and socket: 20:49, 5 September 2021: 940 × 477 (1.72 MB) Themanlk: Update Sri Lanka: 04:19, 12 March 2021: 940 × 477 (1.72 MB) A Tree In A Box: Reverted to version as of 12:04, 17 July 2020 (UTC) Map was broken, only showed Peru France Belarus and Sri Lanka: 03:09, 12 March 2021: 2,753 × 1,538 (1.22 MB) Mithila ...

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