How many kilowatt hours does a 1000W household appliance need? Oh
1000W
One hour will use 1kW * 1H = 1kwh
It's one kilowatt hour
One degree = 1 kwh
How many kilowatts of electricity does a 1000W electric appliance consume in one hour?
W=Pt=1kW*1h=1(KW`h)
Help to calculate the power consumption of electrical appliances
For example, an electrical appliance, 5V 2a, how much electricity consumption in an hour
The formula for the number of hours that can be lit at one time is as follows:
1000 divided by (V * a)
Therefore, one kilowatt hour can light up your bulb for 1000 / (5 * 2) = 100 hours
How many degrees an hour does a 100 watt appliance use? 91 watts?
One hour for a 100 watt appliance is 0.1 degree; 91 watt is 0.09 degree
RELATED INFORMATIONS
- 1. Want to know how to calculate the power consumption of electrical appliances? 1. For example, a refrigerator: the power consumption (kWh / 24h) is 0.49. What is the daily power consumption? How to calculate it? 2. A 2.5-hp cabinet air conditioner: the energy efficiency ratio is 3.39, the input power (W) is 2130, and the cooling capacity is 7350 (W). What is the hourly power consumption of this air conditioner? What are the following figures of the energy efficiency ratio, the input power and the cooling capacity?
- 2. For some common household appliances rated current and power
- 3. The method of calculating the electric energy and power consumed by a certain household appliance with the data on the electric energy meter
- 4. The power of an electric appliance is 2kW. How many kilowatts of electricity does it use after it works normally for 3 hours
- 5. How to convert watt to degree? For example, how long does a 40 watt bulb use electricity
- 6. Electric power in Physics: I want to ask, is a bulb marked with 220 V 800 w working for 800 W per hour or not
- 7. How long does one degree of electricity keep all kinds of electrical appliances running?
- 8. How long does a 100 watt appliance last
- 9. One degree of electricity can give a 50 Watt fluorescent lamp several hours
- 10. When x / k = y, X is proportional to y; when K / x = y, X is proportional to y; when kxy = 2, X is proportional to y; when K / x = 1 / y, X is proportional to y?
- 11. What's the power rating on the household appliances? If it says the rated power is 900W, how much power does the appliance operate at 900W from the beginning to the end? An electric rice cooker, does he start cooking with 900W power? Casually ask the amount of power written on the household appliance, does it mean that the maximum power consumption of this appliance is 900W? Not more than that?
- 12. Electrical appliances in school dormitories should not exceed a few watts It refers to some regulations of the state that the dormitory of a school should not exceed how many watts. If it exceeds a certain power, it is considered as a high-power electrical appliance
- 13. Xiaodong's refrigerator's name plate is shown in the following table. When Xiaodong's household appliances only have refrigerator working, it takes 6min to observe the refrigerator from start to stop working, and the turntable of the electric energy meter turns 18 times. Then the refrigerator actually works in one day when it works with rated power consumption______ h. Start up______ Each time, every 1 kilowatt hour consumed, the meter turns______ Power consumption 0.72kw · H / 24h rated voltage 220V refrigerating capacity 4kg input power 120W refrigerant R600a climate type n · st
- 14. There is a refrigerator, its main technical parameters table has a column called power consumption (kW. H / 24h), the data is 0.66, you know
- 15. Why is there a big gap between the actual power consumption of refrigerator and that provided on the nameplate? Because the refrigerator has the working characteristics of I asked about the characteristics of the job
- 16. Xiaoming's family bought a new induction cooker. Its rated voltage is 220 V and rated power is 1000 W. let the induction cooker work under the rated voltage. Heat 10 kg water from 2 ℃ to 100 ℃ without heat loss. It is known that C water = 4.2x10 cubic J / (kg. ℃). Question: (1) how much heat does water need to absorb? (2) what is the heating time?
- 17. Hair dryer is a common electrical appliance in modern families. Figure 1 shows the hair dryer used in Xiaohua's home. In the process of using, she found that the hair dryer can blow both hot and cold air. According to this phenomenon, she concluded that the motor with fan and the heating wire can generate heat in the hair dryer. According to the phenomenon that the hair dryer can output cold air independently, she thought that the motor and the heating wire are the same (1) which of the above two circuits do you think is more in line with the actual situation. (2) Xiaohua read the manual and learned that the power of this type of hair dryer is 460W when blowing hot air and 20W when blowing cold air. When the hair dryer is working normally and blowing hot air, the power, resistance and current of the heating wire pass through the hair dryer in 1min The heat produced by a hot wire
- 18. The price of type a refrigerator sold in shopping malls is 2190 yuan per unit, and the daily power consumption is 1 degree, while the price of type B energy-saving refrigerator is 10% higher than that of type a refrigerator, but the daily power consumption is 0.55 degree? (calculated according to the service life of 10 years, 365 days per year and 0.40 yuan per kilowatt hour)
- 19. The price of a refrigerator sold in shopping malls is 2190 yuan per unit, and the daily power consumption is 1 kwh, while the price of B refrigerator is higher than that of a refrigerator The A-type refrigerators sold in shopping malls are priced at 2190 yuan per unit, with a monthly power consumption of 1 The price of B refrigerator is 10% higher than that of a refrigerator, However, the daily power consumption is 0.55 kilowatt hour, and the shopping mall will turn A-type refrigerator into a refrigerator If you only consider the price and power consumption, how much discount at least It's cost-effective for consumers to buy? (the service life is 10 years, 365 days per year, 4 yuan per kilowatt hour)
- 20. Incandescent bulb consumes 6 / 25 kwh per hour, while energy-saving bulb only consumes 1 / 40 kwh per hour. How many kwh can be saved by using energy-saving bulb for 10 hours compared with incandescent bulb?