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That depends a lot on the type of lightbulb. Check the number of watts on the lightbulb - watts means joules / second. An old-fashioned incandescent lightbulb might use in the range of 40-100 watts (joules/second); 100 watts for the brighter ones. On the other hand, a fluorescent lightbulb uses around 40 watts for the brighter ones, and a LED lightbulb uses even less.
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How much work does a 75 watt bulb do?
In the sense of 'work' as force moving through a distance, a light bulb does none of that. But in the sense that mechanical work is equivalent to energy in other realms, the 75-watt light bulb consumes 75 joules of electrical energy every second, and radiates 75 joules per second of energy in the form of light and heat.
What will happen to the second light bulb if the first light bulb burns out?
the second bulb become weak because there's not a lot of energy being transformed into bulb 2
What is the source of energy in a light bulb?
Electricity is the source of energy in a light bulb.
When energy runs through a light bulb what kind of energy does the light bulb produce?
A light bulb uses electrical energy, and produces light, as well as heat.
What is the energy efficiency of a light bulb that gives you 30 units of useable energy for every 100 units of energy put into it?
30%
How much work does a 75 watt bulb do?
In the sense of 'work' as force moving through a distance, a light bulb does none of that. But in the sense that mechanical work is equivalent to energy in other realms, the 75-watt light bulb consumes 75 joules of electrical energy every second, and radiates 75 joules per second of energy in the form of light and heat.
What will happen to the second light bulb if the first light bulb burns out?
the second bulb become weak because there's not a lot of energy being transformed into bulb 2
What is the Electrical power for a lightbulb?
The power rating for a light bulb (like "40 W") tells how much electrical power the light bulb uses. All of the power used by the bulb is either converted into light or heat. In an incandescent bulb, most of the energy becomes heat. In a fluorescent bulb, more of it becomes light.
How much energy does a sixty watt light bulb use to yield light?
It takes 60 watt-hours. Same as lighting a 1-watt bulb for 60 hours; or 60 bulbs of 1 watt each for 1 hour. You get the idea.Notice the units: watt-hours, not watts. Watt is a unit of power, watt-hour is a unit of energy. 1 watt-hour = 0.001 kWh (kilowatt-hour) = 3600 joules = 860 calories = 3.4 BTU.
When 60 W means that W joules of energy are transferred into the bulb each second. In use how much energy is given out by the bulb each second?
The light bulb will use electrical energy at the rate of 60 W (60 J/s), and it will emit that energy, also at the rate of 60 W.Note that in any real light bulb, only part of the energy is emitted as visible light. The remainder is mainly heat.
What transformations occur in a light bulb?
In a light bulb, electrical energy is transformed into light energy and heat energy.
What is the source of energy in a light bulb?
Electricity is the source of energy in a light bulb.
What is most of the energy produced by a light bulb?
Most of the energy in a light bulb is heat energy.
When energy runs through a light bulb what kind of energy does the light bulb produce?
A light bulb uses electrical energy, and produces light, as well as heat.
What energy occurs in the light bulb?
light and heat energy occur in a light bulb when it is turned on.
What energy transformation occurs in a bulb?
In a light bulb, electrical energy is transformed into light energy and heat energy.
Is a light bulb an example og electromagnetic energy?
A light bulb is not an example of electromagnetic energy, but the light which the bulb gives off is an example of electromagnetic energy.
