State the relation between the units - kWh and Joule
Answers
Answer:
It will take the same amount of energy: 1 Joule. ... If you use one kilowatt of power for an hour, you have used 1 kilowatt-hour, abbreviated kWh, of energy. One kilowatt-hour is equivalent to the energy of 1,000 joules used for 3,600 seconds or 3.6 million Joules. In equation form: 1 kWh = 3.6 million J.
Answer:
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Explanation:
What is the relationship between kWh and joule?
The kilowatt hour (symbol kWh, kW⋅h or kW h) is a unit of energy equal to 3.6 .10^6 joules.
the energy consumed per sec in watt = 1 joule per sec
the standard unit of power in the (SI), equivalent to one joule per second and equal to the power in a circuit in which a current of one ampere flows across a potential difference of one volt. Abbreviation: W, w.
1 watt = 1 Amp current x 1 volt potential difference.
1 watt hour will mean = amount of energy consumed in 1 hour (60x60) =3600 sec
so the conversion factor is 3.6 .10^6 J
If the energy is being transmitted or used at a constant rate (power) over a period of time, the total energy in kilowatt hours is equal to the power in kilowatts multiplied by the time in hours. The kilowatt hour is commonly used as a billing unit for energy delivered to consumers by electrical consumption.
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