What is electrical energy and its formula?
The energy consumed by an electric circuit to flow current through it is referred as electrical energy. This energy is provided by the battery to every electric charge. The work required to keep the charge Q in motion by the battery of voltage V is. W=VQ.
What is the other name of commercial unit?
Kilowatt-hour is the commercial unit of electrical energy. The other name used for it is units. Here J represents Joules and h represents hour and s represents seconds.
What is the commercial unit of electrical energy and represent it in terms of joules?
Express it in joules. The commercial unit of electric energy is kilowatt-hour (kWh). One kilowatt hour is defined as the electric energy consumed by an appliance of power 1000 watt in one hour. The electrical energy used in households, industries and commercial establishments is expressed in kilowatt hour.
What is the common name of 1kWh of electrical energy?
Solution. 1 kilowatt of electrical energy is commonly known as ‘1 unit’ of electricity.
What is the commercial unit of electrical energy converted into Joules?
Commercial unit of electric energy is kilowatt hour(kWh). Convert 1kWh into Joule.
What is the relation between kilowatt hour and 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.
How many kilowatts are in a Joule?
0.000000277777778 kilowatt
What is relation between kWh and Joule Class 9?
1 kWh = 3.6 x 106J Was this answer helpful?
What is meant by kilowatt hour?
A kilowatt hour (kWh) is a measure of how much energy you’re using. It is simply a unit of measurement that equals the amount of energy you would use if you kept a 1,000 watt appliance running for an hour: So if you switched on a 100 watt light bulb, it would take 10 hours to rack up 1 kWh of energy.
How many watts is a kilowatt hour?
one thousand watts
How much does 1000 watts per hour cost?
Appliance Electricity Usage
| Appliance | Typical Consumption Per Hour | Cost Per Hour (at 10 cents per kilowatt-hour) |
|---|---|---|
| Hair dryer | 1,200 watts | 12 cents |
| Electric range burner | 1,000 watts | 10 cents |
| Refrigerator | 1,000 watts | 10 cents |
| Desktop computer and monitor | 400 watts | 4 cents |
How many kWh Should I use a day?
According to the EIA, in 2017, the average annual electricity consumption for a U.S. residential home customer was 10,399 kilowatt hours (kWh), an average of 867 kWh per month. That means the average household electricity consumption kWh per day is 28.9 kWh (867 kWh / 30 days).