W = pt =1kw×1= lkwh =1000 w× 3600 sec = 3.6×106 angle.

That is, 1 kwh = 3.6× 10 6 angle.

Kilowatt hours; Our or kilowatt hours (symbol: kilowatt hours; Often refers to the degree) is a unit of energy measurement, indicating the energy consumed by an electrical appliance with a power of one kilowatt after one hour of use.

“kW？ The unit "hour" is mainly used to measure electricity, because "kilowatt? "Hour" is easier to be understood by the public than Joule, and it is also easier to convert it into the hours used by electrical appliances. On the other hand, Joule is relative to "kW"? The unit of measurement of "hour" is too small to be calculated. Some public institutions in Chinese mainland use "megawatt hour" instead of "kilowatt hour" When ". In Chinese, "kilowatt" is sometimes written as a rebuttal.

In addition, there is a unit one level higher than kWh, that is, watt hour (symbols in the product description: w h, Whr), which is one thousandth of "kWh". Generally, a notebook battery with six batteries stores about 56 Whr of energy. 1W h = 3600 joules

Extended data:

Relationship with electricity

International unit? joule

Common unit kilowatt-hour symbol kilowatt-hour

Commonly known as degree, once = once electricity.

Electric work (w) is the same as electric energy. The international unit is joule (j).

The formula of electric power: P=W/t (in the formula, t stands for time, the basic unit is second -s, and it is often calculated in unit hour -h).

Measurement formula of electric power: P=UI (where u stands for voltage, and the basic unit is volt-v; Capital I stands for current, and the basic unit is ampere -A)

According to ohm's law: U=IR (where R stands for resistance and the basic unit is ohm-ω).

Therefore, the formula of electric power can also be modified as:

(1) p = I× I× R (more convenient when used in series circuits)

②P=U×U/R (easy to use in parallel circuit).

③W=U×Q

Because I=Q/t

So Q=I×t

So W=I×U×t (the formula for calculating electric work is applicable to any circuit).

(4) Through ohm's law, it can be deduced;

Because I=U/R

So W=U/R×U×t

W=U？ /Rt (for pure resistance circuits)

Unit conversion: Watt was named after British scientist james watt, who made great contributions to the development of steam engines. This unit name was first adopted by the second meeting of the British Association for the Advancement of Science in 1889.

1960, the international metrology congress 1 1 adopted watt as the unit of power in the international system of units. People often use unit of power times time unit to express energy. For example, 1 kwh is the energy consumed by an energy-consuming device with a power of 1 kw in 1 hour, which is equal to 3.6* 1000000 joules.

References:

Baidu Encyclopedia-kWh