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How many seconds does it take for a 100 Watt bulb to transform 120 Joules of energy?
To find the time it takes for a 100 Watt bulb to transform 120 Joules of energy, you can use the formula: power (Watts) = energy (Joules) / time (seconds). Rearranging the formula gives time = energy / power. Thus, time = 120 Joules / 100 Watts = 1.2 seconds. Therefore, it takes 1.2 seconds for the bulb to transform 120 Joules of energy.
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.
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!)
How many joules of light energy are in 1440 watts of electrical energy?
A joule is a joule, whether it be electrical energy or light energy - although commonly, lamps are not 100% efficient.On the other hand, you can't convert joules directly to watts. Watts means joules per second (joules / second), or equivalently, joules is watts times seconds.A joule is a joule, whether it be electrical energy or light energy - although commonly, lamps are not 100% efficient.On the other hand, you can't convert joules directly to watts. Watts means joules per second (joules / second), or equivalently, joules is watts times seconds.A joule is a joule, whether it be electrical energy or light energy - although commonly, lamps are not 100% efficient.On the other hand, you can't convert joules directly to watts. Watts means joules per second (joules / second), or equivalently, joules is watts times seconds.A joule is a joule, whether it be electrical energy or light energy - although commonly, lamps are not 100% efficient.On the other hand, you can't convert joules directly to watts. Watts means joules per second (joules / second), or equivalently, joules is watts times seconds.
What does the difference a 60-watt and a 100- watt light bulb describe?
Those numbers describe the power used by the two bulbs, in other words how many joules of electrical energy they use per second. The 100 watt bulb uses 40 watts more.
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
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 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)
How many seconds does it take for a 100 Watt bulb to transform 120 Joules of energy?
To find the time it takes for a 100 Watt bulb to transform 120 Joules of energy, you can use the formula: power (Watts) = energy (Joules) / time (seconds). Rearranging the formula gives time = energy / power. Thus, time = 120 Joules / 100 Watts = 1.2 seconds. Therefore, it takes 1.2 seconds for the bulb to transform 120 Joules of energy.
If the light bulb from number 10 radiates 100 watts times 100 joules per second of photons. How many photons per second are radiated?
To find the number of photons being radiated per second, you need to calculate the energy of each photon first. Since the light bulb emits 100 watts (100 joules per second), and each photon has an energy of about 4.86 x 10^-19 joules for visible light, you can divide the total energy emitted per second by the energy of each photon to find the number of photons emitted.
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 volts of electricity does a 60wat light bulb use if left on for 15min?
You can't calculate how many volts with that information; you could calculate the energy - 60 watts for 15 minutes is equivalent to 54,000 joules.
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!)
How many watts in an energy efficient light bulb?
100
What does the the difference between a watt and a watt light bulb describe?
Those numbers describe the power used by the two bulbs, in other words how many joules of electrical energy they use per second. The 100 watt bulb uses 40 watts more.
How many joules of light energy are in 1440 watts of electrical energy?
A joule is a joule, whether it be electrical energy or light energy - although commonly, lamps are not 100% efficient.On the other hand, you can't convert joules directly to watts. Watts means joules per second (joules / second), or equivalently, joules is watts times seconds.A joule is a joule, whether it be electrical energy or light energy - although commonly, lamps are not 100% efficient.On the other hand, you can't convert joules directly to watts. Watts means joules per second (joules / second), or equivalently, joules is watts times seconds.A joule is a joule, whether it be electrical energy or light energy - although commonly, lamps are not 100% efficient.On the other hand, you can't convert joules directly to watts. Watts means joules per second (joules / second), or equivalently, joules is watts times seconds.A joule is a joule, whether it be electrical energy or light energy - although commonly, lamps are not 100% efficient.On the other hand, you can't convert joules directly to watts. Watts means joules per second (joules / second), or equivalently, joules is watts times seconds.
What does the difference between a watts and a 100-watts light bulb describe?
Those numbers describe the power used by the two bulbs, in other words how many joules of electrical energy they use per second. The 100 watt bulb uses 40 watts more.
