No, because they measure different things. A Joule is an amount of energy, and a Watt measures how fast energy is being used. 1 Watt is equal to 1 Joule per second. So, 100 watts = 100 Joules per second.
The question "How many volts is a 100 watts?" does not make sense. This answer explains why, and attempts to answer the underlying question.
A volt is a unit of electrical pressure, in fundamental units of joules per coulomb. A watt, on the other hand is a unit of power transfer, in fundamental units of joules per second. The two units do not convert between each other without some other factor.
That factor is current, or amperes, in fundamental units of coulombs per second.
Multiply volts (joules per coulomb) and amperes (coulombs per second) and you get watts (joules per second).
So, at a current of 10 amperes, a voltage of 10 volts will dissipate 100 watts. At 5 amperes, it takes 20 volts to dissipate 100 watts. At 1 amperes, it takes 100 volts to dissipate 100 watts.
Watts is a unit of power that is equal to volts x amps x Power Factor.
Answer
The watt is the SI unit for power.
Power is defined as 'the rate of doing work'. Since work is measured in joules, the watt is equivalent to (a special name given to) a joule per second.
The watt is sometimes described as measuring 'electrical' power. In fact, there is no such thing as 'electrical' or 'mechanical' (etc.) power, as power is simply a rate.
Watts is a measure of power. Watts is defined as volts x amps x power factor. The maximum value of power factor is 1 for a resistive load and decreases with various inductive loads. Now electricity doesn't relate directly to wattage other than knowing how many amps are required for a given voltage. In a typical incandescent 100 watt light bulb you have 120 volts and about .83 amps.
welll it really depends on the volasity of light energy but from my calculatios it is 900
That depends on how long you keep it up. '100 watts' means '100 joules every second'.
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.
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.
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.
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.
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.
there are 100 joules in an energy efficient light bulb 75 joules go towards the light and 25 joules go towards the heat
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).
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.
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.
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.
100
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.
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)
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.
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.
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.
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.