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A household electric energy meter has 3000r / kWh on it. If the meter is used to measure the power of the terminal electric appliance, the turntable turns 15 times in 3 minutes The work done by the current_____ Kilowatt hour=_____ Coke, what's the power of this consumer____ tile
zero point one
3.6×10^5
one hundred
A household electric energy meter with 3000r / kWh on the dial. If an electric appliance turns 150r in 3min
How much energy is consumed? How many joules? How much work is done by the current?
3000:1kWh=150:W
W=0.05kWh=180000J
During this period, the consumed electric energy is 0.05kwh, equivalent to 180000 joules, and the current does 180000j work
When all electric appliances (total power 600W) of electric energy meter 220V 10A 3000r / kWh work for 4 hours, how many turns does the turntable turn|
1kW. 1H can turn 3000r, 600W work 4h, a total of 2.4kw. So it can turn 7200r
A watt hour meter is marked with 3000 R / kW · h. now it is observed that the watt hour meter rotates 45 times in 10 min. how much work does the current do?
The power consumption in the circuit is w = 453000kw · H = 0.015kw · H = 5.4 × 104j. A: the current does 5.4 × 104j work
RELATED INFORMATIONS
- 1. A watt hour meter is marked with 3000 R / kW · h. now it is observed that the watt hour meter rotates 45 times in 10 min. how much work does the current do?
- 2. 2. The surface of an electric energy meter is marked with 3000r / kWh. If there are several 100W electric lamps in this circuit, observe the turntable and measure that the turntable has turned 50 revolutions in 5 minutes. If the switch is not opened or closed during this period, it will turn 50 revolutions in this period______ Two lights are used at the same time Is there an analysis process
- 3. The dial of a household electric energy meter is marked with the word "3000r / kW · H". If an electric water heater is used alone, the dial turns 210 revolutions in 300s, The energy consumed by the water heater, And how much heat the water heater can give off to make the water temperature reach 10 ℃
- 4. The watt hour meter is marked with "3000r / kWh". If only one consumer works in the circuit of the meter, the dial of the watt hour meter will turn 30R in 6 minutes Then, the electric energy consumed by the appliance is ［ J, and the current passing through it is ］ a
- 5. On the calculation of watt hour meter revolution and power consumption
- 6. How to calculate the consumed electric energy according to the revolutions and time of the electric energy meter?
- 7. What does single phase meter 20 (80) a mean? Three phase meter 30 (100) a? They read 30 times 100A
- 8. Three companies share a total electricity meter, and they pay 123.50 yuan in October. How much should each company pay? Li family: number of ammeters 62 Wang family: number of ammeters 58 Liu family: number of ammeters 70
- 9. Xiao Ming helps his parents to budget the electricity bill in November. The following table shows the readings of the electricity meter every morning for 8 consecutive days in early November: 1,21,2,24,3,28,4,33,5,39,6,42,7,46,8,49. If the electricity bill per kilowatt hour is 0.53 yuan, what is the estimated electricity bill of Xiao Ming's family in November (30 days)?
- 10. 1.5 (6) a meter, 1 degree of electricity is equal to 15 degrees, the meter can withstand the maximum power
- 11. The electricity meter of a classmate's home is marked with 220V, 10a and 3000r/ The electric energy meter is marked with "220V 10A" and "3000r / kWh", which indicates that the electric energy meter can be connected to the electric appliances with a total power of () W at most. One day, all the electric appliances in the student's home (with a total power of 600W) work for 4h, then the dial of the electric energy meter will rotate ()? The second question needs process. The first question is I will, train of thought or process,
- 12. What does 10 (20) a mean on an energy meter?
- 13. The meaning of 3 × 10 (40) a meter 1、 What do you mean by "3", "10" and "40" in the 3 × 10 (40) a meter? 2、 On the premise of safety, what is the maximum allowable power?
- 14. What do the numbers in 3 * 4 * 1.5 (6) mean?
- 15. What will happen if a small light bulb (2.5V 0.3A) and a household incandescent lamp (220V 40W) are connected in series to a 220V power supply? There are four options. What do you choose? A small light bulb and incandescent light bulb are on B small bulbs and incandescent lamps are burned out C small bulb short circuit, incandescent lamp normal light D small bulb burned out, incandescent lamp in good condition, but does not emit light Please talk about your ideas
- 16. There is a "220v40w" light bulb A. how many can a "220v5a" electric energy meter connect to this kind of light?
- 17. If the dial of the electric energy meter is marked with the words of 220V and 5A, the total power of the electric appliance that the electric energy meter can connect cannot exceed () kW
- 18. An electric energy meter is installed on the home circuit. The turntable turns 180 turns in 2 hours An electric energy meter is installed on the home circuit (trunk road). The turntable of electric energy is measured to rotate 180 times within 2 hours. How many joules of electric energy are consumed by the appliance during this period? (the electric energy meter is marked with 600 revs / kW. H) Answer clearly
- 19. A watt hour meter is marked with the word 3000kW. H. now it is observed that the watt hour meter rotates 45 times in 10 minutes. How much work has the current done?
- 20. There is 3000r / kW. H on the dial of an electric energy meter. Use the electric energy meter and stopwatch to calculate the electric power of an electric lamp and let the lamp work independently, It takes three minutes to find out: (1) what is the electric energy consumed by the lamp? (2) the electric power of the lamp