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  2. Blondel's theorem - Wikipedia

    en.wikipedia.org/wiki/Blondel's_theorem

    The N watt-meters are separately connected such that each one measures the current level in one of the N conductors and the potential level between that conductor and a common point. In a further simplification, if that common point is located on one of the conductors, that conductor's meter can be removed and only N-1 meters are required. An ...

  3. Wattmeter - Wikipedia

    en.wikipedia.org/wiki/Wattmeter

    If a laptop computer in sleep mode consumes 5 W, the meter may read anything from 0 to 15.25 W, without taking into account errors due to non-sinusoidal waveform. In practice accuracy can be improved by connecting a fixed load such as an incandescent light bulb, adding the device in standby, and using the difference in power consumption. [ 3 ]

  4. Watt - Wikipedia

    en.wikipedia.org/wiki/Watt

    The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m 2 ⋅s −3. [1] [2] [3] It is used to quantify the rate of energy transfer.

  5. Lazada - Wikipedia

    en.wikipedia.org/wiki/Lazada

    Lazada Group (Chinese: 來贊達; t/a Lazada) is an international e-commerce company and one of the largest e-commerce operators in Southeast Asia, with over 10,000 third-party sellers as of November 2014, and 50 million annual active buyers as of September 2019. [3] [4] [5] [needs update]

  6. Electricity meter - Wikipedia

    en.wikipedia.org/wiki/Electricity_meter

    An electricity meter, electric meter, electrical meter, energy meter, or kilowatt-hour meter is a device that measures the amount of electric energy consumed by a residence, a business, or an electrically powered device over a time interval. Electric utilities use electric meters installed at customers' premises for billing and monitoring purposes.

  7. Kill A Watt - Wikipedia

    en.wikipedia.org/wiki/Kill_A_Watt

    The Kill A Watt (a pun on kilowatt) is an electricity usage monitor manufactured by Prodigit Electronics and sold by P3 International. It measures the energy used by devices plugged directly into the meter, as opposed to in-home energy use displays , which display the energy used by an entire household.

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