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How many kilowatt hours does a 25 watt fluorescent light bulb use in 24 hours?
Wiki User
∙ 12y ago
25*24/1000
or:
first convert wattage to kilowatts (25/1000) = .025 Kw
then multiply by hours 24hrs X .025Kw = 0.6 Kwh about 6 cents/day
see what wattage on your TV is.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoA kilowatt hour is one kilowatt used for one hour, so to get your answer you simply multiply the two together (in the correct units of course)
25 watts is 25/1000 Kilowatts
so you get 25/1000 kW * 24 Hours
giving 0.6 kWH
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How many kilowatt hours KWh are used to light a 30 watt light bulb in 8?
A 30-watt bulb uses 0.03 kilowatt-hours every hour, or 30 kilowatt-hours in 1000 hours. To find the kilowatt-hours, multiply 0.03 by the time in hours.
How is a light bulb better for growing plants then a fluorescent?
The light spectrum from an incandescent (a bulb) is closer to the spectrum of the sun than what comes from a fluorescent.
Why does a circular fluorescent light bulb not light up fully?
You have a failing bulb or ballast.
How often do fluorescent lights have to be changed?
Depending on the size of the light and how it is used, a fluorescent light can have a lifespan of anywhere from 8,000 to 30,000 hours. Fluorescent lights tend to lose their brightness over time, so it is recommended to change the light bulb before it burns out completely.
How many hours of operation with a 60 watt light bulb will one kilowatt hour give you?
The idea is to divide the energy by the power used. First, convert the units to make them consistent. For example, you might convert kilowatt-hours to watt-hours.
How many kilowatt-hours does a 50 watt fluorescent light bulb use in 24 hours?
50 watts is 0.05 kilowatts, so in 24 hours it uses 0.05 x 24 kilowatt-hours, or 1.2 kilowatt-hours of energy.
How many kilowatt hours KWh are used to light a 30 watt light bulb in 8?
A 30-watt bulb uses 0.03 kilowatt-hours every hour, or 30 kilowatt-hours in 1000 hours. To find the kilowatt-hours, multiply 0.03 by the time in hours.
If a 60 watt light bulb is used for 95 hours before it burns out what is the life of the light bulb in kilowatt hours?
This is a tricky question. Similar to the question which weigh more 1 kilogram wool or 1 kilogram iron? 1 kilowatt = 1,000 watt, and 60 watt are 0.06 kilowatt. It is the same power, but expressed in two different terms. The life of the light bulb will be the same, 95 hours.
Who invented fluorescent light bulb?
EEdmund Germer (90% sure) made the first fluorescent light bulb
How much energy does it take to light fluorescent a light bulb for 1 hour?
The average home fluorescent lamp consumes 40W of power. Running for one hour it will consume 0.04 KWh. Units of electricity are charged per Kilowatt hour.
What is the spectrum of fluorescent light?
light bulb
If a 100 w light bulb is lit for 8 hours each day for W days in a month many kilowatt-hours will the bulb consume?
Convert the 100 watts to kilowatts. Calculate the total time in hours, and multiply by the number of kilowatts that the light bulb uses.
How is a light bulb better for growing plants then a fluorescent?
The light spectrum from an incandescent (a bulb) is closer to the spectrum of the sun than what comes from a fluorescent.
How much does it cost to run a light bulb?
It depends on the bulb, how many watts it is. All bulbs are marked with the correct voltage and the power taken, in watts. You multiply the watts by the number of hours to find the watt-hours of energy used. Then divide by 1000 to find the kilowatt-hours. A kilowatt-hour is also called a unit and you pay about £0.15 for a unit of electricity. Let's say it's a 100 watt bulb running for 24 hours. That uses 2400 watt-hours or 2.4 kilowatt-hours, which costs about 2.4 x £0.15 which is £0.36.
What year was the fluorescent light bulb invented?
The flourescent light bulb was invented in 1827.
Why does a circular fluorescent light bulb not light up fully?
You have a failing bulb or ballast.
How do you compute electrical consumption of a device?
A simple electrical device is a 60 watt light bulb. The bulb is consuming 60 watts of electricity from the moment you turn it on. If you keep that light bulb on for 10 hours the power used is 60 watts x 10 hours = 600 watts of power. Electricity is sold in Kilowatt Hours. A Kilowatt is 1000 watts of power. Depending on the state you live in, it sells for 7 to 18 cents per Kilowatt Hour. So if you leave that light bulb on 10 hours per day for 30 days you will have used up 600 watts x 30 days = 18,000 watts of electricity = 18 Kilowatt Hours. At an average cost of 10 cents per Kilowatt Hour that bulb costs you $1.80 per month to leave on. The formula is watts x time x cost per Kilowatt Hour = cost of use...Answer provided by Gene Evangelist
