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How many days the light bulb lasted?
Takes 300 hours for the average light bulb to burn out
How many people do you need to turn on a light bulb?
It should only take one person to switch on a light bulb if it is 6 light bulbs it may take 6 people to switch on a light bulb Der!
How many types of light bulbs are there?
352 There are six different types of light bulbs invented as of December 27, 2012. They include the incandescent light bulb, the halogen light bulb, the fluorescent light bulb, the high-density discharge lamps, LEDs, and sodium lamps.
How many joules are there in a led bulb?
Since LED bulbs come in a variety of sizes there is no one answer. If we consider Watts then LED bulbs from 1 to 12 Watts are common. The higher end of quality LED lights that are commercially produced generally yield about 80 lumens per Watt. This means for a 10 Watt LED bulb your looking at 800 Lumens. This is higher than both CFL and incandescent lights. LED bulbs can save money in the long run due to the lower energy use, but they require a larger up front investment. See below for a link to an example of an LED bulb that produces 460 lumens.
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 many joules are saved by a energy efficient light bulb?
there are 100 joules in an energy efficient light bulb 75 joules go towards the light and 25 joules go towards the heat
Does a 150 watt bulb do 150 joules of work?
Every second a 150 Watt bulb converts 150 Joules from electricity into heat and light. The number of Watts tells you how many Joules pass per second.
How many Joules of electrical energy does a 100 Watt light bulb consume from the electrical supply in 2 seconds?
Watt means joules/second. It refers to the amount of energy a device uses, in this case. Multiply the power (in watts) by the time (in seconds) to get the energy (in joules).
How many watts does a light bulb use per week?
Your question is rather like asking "How many miles per hour do you do in a week?" You don't consume watts over time, it's a measure of how many joules of energy you consume over time.
How many joules does a 40 watt ight bulb convert in 10 seconds?
Four Hundred 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 btu's of heat are produced by a T8 fluorescent lamp?
Almost 90 % of electrical energy provided to an incandescent light bulb goes as heat and rest as light. A 100 Watt bulb puts out 100 Joules of heat per second. So - for one minute it would put out 6000 Joules (100 Watts X 60 seconds). 1 BTU (British Thermal Unit) of heat = 1055.056 Joules. So a 100 watt bulb, burning for one minute would put out 5.68 BTUs of heat. ( 6000 Joules / 1055.056 Joules) = 5.68 BTUs. Same bulb burning for one hour would generate 341 BTUs of heat.
How many joules are there in one kWH?
There are 3.6 million joules in one kilowatt-hour (kWh).
How many killawatts are in a standard light bulb?
"A standard light bulb I would consider to be a 60 watt light bulb, and kilowatts are the amount of usage in a light bulb. From my research I have found that a standard 60 watt light bulb uses approximately 1.44 Kilowatts per hour."
How many kwh does a 200w light bulb use?
In ten hours, a 200W bulb will use: 10 * 200 = 2000 Watt-hours = 2 kwh
How many joules of energy does a 100 watt bulb require each second?
With current (as of 2013) technology, from best to worst efficiency, the light bulbs are basically:LED light bulbs (most efficient)Fluorescent lightsThe old-fashioned incandescent lights (worst)
If you run a 100 W light bulb for 30 days continuously how many Joules of energy have been used?
100 watts = 0.1 kilowatts. 0.1 kilowatts for 24 hours a day for 30 days is 0.1 x 24 x 30 = 72 kilowatt-hours.1kWh (one kilowatt-hour) is 3.6 MegaJoules of energy. 3.6 x 72 = 259.2 MegaJoules of energy used.(This is assuming a pure, constant, clean flow of electricity, it's an incandescent bulb with no power factor or electronic ballast/transformer efficiency to take into account!)
