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  2. Mains electricity by country - Wikipedia

    en.wikipedia.org/wiki/Mains_electricity_by_country

    50 Hz. (1) Nominal grid voltage according to regulation is 230/400 V, [44] but in practice, equipment with 220/380 V is more commonly used. (2) Types C and F plugs are officially recognized by SNI 04-3892.1.1-2003. (3) British Type G sockets are common in Riau Islands due to their close proximity to Singapore.

  3. The best portable power strips and surge protectors with USB ...

    www.engadget.com/2020-03-08-the-best-portable...

    The third AC outlet on the back of the unit helps to keep power bricks out of the way, and the right-angle plug easily fits in tight spots, like behind hotel furniture. Our other picks aren't ...

  4. The best uninterruptible power supply (UPS) - Engadget

    www.engadget.com/2020-03-13-the-best...

    The CP800AVR uses a modified sine-wave inverter to turn the DC power in the battery into a rough approximation of standard AC power. Rated for at least 600 VA output: Most models explicitly ...

  5. War of the currents - Wikipedia

    en.wikipedia.org/wiki/War_of_the_currents

    The war of the currents was a series of events surrounding the introduction of competing electric power transmission systems in the late 1880s and early 1890s. It grew out of two lighting systems developed in the late 1870s and early 1880s; arc lamp street lighting running on high-voltage alternating current (AC), and large-scale low-voltage direct current (DC) indoor incandescent lighting ...

  6. Ayacucho Quechua - Wikipedia

    en.wikipedia.org/wiki/Ayacucho_Quechua

    Ayacucho (also called Chanca or Chanka after the local Chanka ethnicity that dominated the area before the Inca conquest) is a variety of Southern Quechua spoken in the Ayacucho Region, Peru, as well as by immigrants from Ayacucho in Lima. With roughly a million speakers, it is the largest variety of Southern Quechua after Cusco Quechua.

  7. Category:UPES - Wikipedia

    en.wikipedia.org/wiki/Category:UPES

    U. UPES. Category: Universities in Uttarakhand. Hidden category: Wikipedia categories named after universities and colleges in India.

  8. Amazon's latest Fire HD 10 tablet finally has a USB-C port

    www.engadget.com/2019-10-07-amazon-fire-hd-10...

    Amazon claims about 12 hours of mixed use on the new model. When it comes time to charge the device, the company has finally added USB-C connectivity. The Fire 10 HD comes with a 9W power adapter ...

  9. AC power plugs and sockets - Wikipedia

    en.wikipedia.org/wiki/AC_power_plugs_and_sockets

    AC power plugs and sockets connect devices to mains electricity to supply them with electrical power. A plug is the connector attached to an electrically-operated device, often via a cable. A socket (also known as a receptacle or outlet ) is fixed in place, often on the internal walls of buildings, and is connected to an AC electrical circuit.