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How much work does a 100-watt light bulb do when it is lit for 30 seconds?
Wiki User
∙ 12y ago
3000 joules(J)
Wiki User
∙ 12y ago
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How much energy will a 100w light bulb convert to light and heat if it is left burning for 1hour?
Power = Energy/time 100W=Energy/360 Seconds Energy = 100/360 Energy ≈ 0.27 Joules
What is the main reason fore a light bulb to stop working?
the main reason for a light bulb to break is, the light bulb heats the tungstin wire. When the tungstin wire gets heated to much it breaks, causing thi light bulb to stop working.
How much was the light bulb in 1879?
Zero, nothing. It wasn't until 1880 that Edison patented the first commercially viable incandescent light bulb.
Why do you think a light bulb feels warm?
A light bulb is designed to take electrical energy and radiate it as electromagnetic energy.It would be nice of all of that energy came out in the form of light, but that has never been accomplished yet. An incandescent light bulb ... the original kind ... radiates much more heatenergy than light energy. In other words, an incandescent light bulb works much more efficientlyas a heater than it does as a source of light.
Could you live without the light bulb being invented?
yes because fire has always been use as light so definatly you can live without the invention of a light bulb and a light bulb was invented to make life much more easier
Theres a 100watt bulb left on for one 30 day month uses 72 kilowatt-hours of electricity the cost is 5.76 How much does a 100watt bulb use in 1week and how much does it cost?
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Do energy efficient bulbs really reduce an electric bill?
Yes A 100watt light bulb left on for 10 hours will use a much electricity as a 1 Kilowatt fire left on for one hour. An energy efficient light bulb giving out the same amount of light as a 100watt bulb, only actually uses 20watts of electricity. That is 1/5th of the electricity, it will need to be on for 50 hours to use as much as a 1 Kilowatt fire left on for one hour. This will reduce your electric bill but the bulbs are more expensive than old 100watt bulbs (but the energy efficient bulbs last 6-8 times longer! so this balances out).
How much energy does a 95 watt light bulb use in 40 seconds?
The energy is 95 x 40 watt-seconds (Joules).
How much work does a 100-watt light bulb do when its lit for 30 seconds?
3000 joules(J)
How much heat energy will a 40W light bulb give out in 3 minutes?
Joules = watts x seconds. Just convert the minutes to seconds, then multiply.
How much energy do you save with 10 light bulbs off?
That depends on the power used by each light bulb. Look at the specifications for a specific light bulb, then multiply the power by 10. Note that energy = power x time; that is to say, the energy spent by a light bulb depends on its power, but also on how long you keep it on. Specifically, watts = joules x seconds.
How much energy does a 100-w light bulb use in 10 s?
Power = energy / time, in SI units: watts = joules / seconds. Solving for energy: Joules = watts x seconds.
Why does a bulb blow?
Because to much electricity is getting through to the light bulb.
How much energy will a 100w light bulb convert to light and heat if it is left burning for 1hour?
Power = Energy/time 100W=Energy/360 Seconds Energy = 100/360 Energy ≈ 0.27 Joules
How much electricity does electric bulb uses?
The quantity of power consumed by a light bulb is dependant on the wattage of the bulb.
What is the main reason fore a light bulb to stop working?
the main reason for a light bulb to break is, the light bulb heats the tungstin wire. When the tungstin wire gets heated to much it breaks, causing thi light bulb to stop working.
How much time would a 60w light bulb to run out of light?
The average lifetime of an incandescent bulb is around 2000 hours.
