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To find out how much energy is transferred in an hour in joules, you need to know the power consumption of the device in watts. You can calculate the energy transferred by multiplying the power in watts by the time in hours. The formula is Energy (joules) = Power (watts) x Time (seconds).

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1y ago

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What does a kilowatt-hour measure?

It is a unit of energy. If energy is transferred at a rate (power) of one kilowatt, during one hour, then one kilowatt-hour (kilowatt times hour) of energy will be transferred. Since a joule is equal to a watt-second, a kilowatt-hour is the same as 3.6 million joules.


How many joules of energy are in 1 kWH?

1 joule = 1 watt-secondkilo = 1,000hour = 3,600 seconds1 kilowatt-hour = 1,000 x watt x (3,600 seconds) = 3,600,000 joules


How many joules are in different units of energy?

1 calorie = 4.184 joules 1 kilowatt-hour (kWh) = 3.6 million joules 1 British thermal unit (BTU) = 1,055 joules


What is a measure of eletrical energy equivalent to one kilowatt hour?

A measure of electrical energy equivalent to one kilowatt hour is a unit of energy equal to 3.6 million joules.


What measurement is energy measured in?

It depends, If you measure your own energy it would be in joules, if it is for your house you measure it with kilo-watt hour


What is the equation of converting horsepower to joule?

Horsepower is a unit of power, but joules is a unit of energy. To convert horsepower to joules, you need an additional time parameter. One horsepower is about 745.7 watts. So a horsepower-hour is 745.7 watt-hours. One watt-hour is 3600 joules. A horsepower-hour is then 745.7 times 3600 = 2684520 joules.


Write a relation between commercial unit of electricity and the SI unit of energy?

1 kWh = 3,600,000 joules (or watt-seconds).


What is difference between Kilowatt power vs kilowatt hour?

Kilowatt is a measure of the rate of energy use. It is 1,000 Watts or 1,000 Joules per second. A kilowatt hour is 1,000 Joules per second for 3,600 seconds or 3,600,000 Joules. This means a Kilowatt hour not a rate but a measure of total energy used.


What unit measures electrical energy consumption?

In physics, the total amount of energy is measured in joules. The rate of energy use - joules/second - is the power, the unit is also known as watt. Electricity companies tend to use another measure for energy use: the kilowatt-hour (kWh), which of course is equal to 3.6 million joules.


One kilowatt equals how many btu per hour?

A BTU is about 1055 joules. A kilowatt is 1000 joules/second, so it is 3,600,000 joules/hour. Dividing that by 1055 joules gives you the equivalent of about 3400 BTU/hour.


How many joules are equivalent to one kilowatt per hour?

The energy 1 kilowatt-hour (kWh) is 3600000 joules.AnswerThere is no such thing as a 'kilowatt per hour'. You probably mean 'kilowatt hour'?


What is cost of btu?

This depends on the cost per kilowatt hour in your area.