Watt - Wikipedia
网页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.
Watt (W) electrical unit - RapidTables.com
网页Watt is the unit of power (symbol: W). The watt unit is named after James Watt, the inventor of the steam engine. One watt is defined as the energy consumption rate of one joule per second.
瓦特 - 维基百科，自由的百科全书
网页瓦特 （符号： W）是 国际单位制 的 功率 单位，简称 瓦。. 1瓦特的定义是1 焦耳 /秒（1 J/s） [1]，即每秒钟转换，使用或耗散的（以安培为量度的） 能量 的 速率。. 日常生活中更常用千瓦作为单位，1千瓦=1000瓦特。. 在电学单位制中，瓦特 = 伏特 · 安培，但不 ...
Watt | Power, Energy, Electricity | Britannica
网页2024年8月23日 · Watt, unit of power in the International System of Units (SI) equal to one joule of work performed per second, or to 1746 horsepower. An equivalent is the power dissipated in an electrical conductor carrying one ampere current between points at one volt potential difference.
What is a Watt? Power Explained - Electricity Forum
网页A watt is a unit of power, named after engineer James Watt, which measures the rate of energy transfer. A watt, in electrical terms, is the rate at which electrical work is done when one ampere (A) of current flows through one volt (V).
What is Watt? - Energy Theory
网页2023年11月23日 · Watt is the SI unit of power and is defined as the rate of energy transfer per unit of time. Combining all other base units of SI such as kilogram (kg), meter (m), and second (s), constructs the standard defining constants.
Measuring electricity - U.S. Energy Information Administration …
网页2022年11月29日 · Electricity is measured in units of power called Watts, named to honor James Watt, the inventor of the steam engine. A Watt is the unit of electrical power equal to one ampere under the pressure of one volt. One Watt is a small amount of power. Some devices require only a few Watts to operate, and other devices require larger amounts.
AI for Teachers - Khan Academy
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watt - Metric System
网页The watt, symbol W, is the SI coherent derived unit of power, or rate of energy transfer. It is the special name for the kilogram metre squared per second cubed, symbol kg m 2 s -3 . One watt is equal to the transfer of one joule in one second .
Measurement unit conversion: watt - Convert Units
网页The watt (symbol: W) is the SI derived unit for power. It is equivalent to one joule per second (1 J/s), or in electrical units, one volt ampere (1 V·A).