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Why must the total energy output of the hairdryer always equal the total energy input to the hairdryer?
Wiki User
∙ 9y ago
That doesn't just applies to hairdriers, it's a more general law - conservation of energy. Energy can't be created nor destroyed; you can't create energy out of nowhere, but you can't destroy it either.
Wiki User
∙ 9y ago
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If the input work on a machine is equal to its output work does the machine has efficiency?
If the useful energy output of a system is equal to the energy input, the following calculation can be done:Efficiency = (Useful energy out) / (Energy In)Efficiency = 1Efficiency = 100%Therefore, the machine you describe does have an efficiency value, which is equal to 100%. Very few situations like this exist though, unfortunately.
When energy input is equal to energy output?
100 % efficiency, and the beginning of perpetual motion. OR you have an electric heater - and all loses are what you want.
Why is the output of a machine never equal to the work input?
Bcoz of the loss of energy in form of heat , sound etc.
Is work input always equal to work output?
Yes the only thing a machine changes is force,distance or direction
Is input and output always equal?
Matter can be neither created nor destroyed but only changed from one form to another.
A comparsion of energy output with energy input?
The result (ratio) of such a comparison is called the efficiency. Note that total energy output must be equal to energy input (conservation of energy); however, what is relevant for this comparison is the useful energy output.
What law of thermodynamics requires the work output of the engine to equal the difference in the quantities of heat taken in and released by the engine?
The first law of thermodynamics requires that the energy input to a system must equal the energy output from a system plus the accumulation of energy in a system. If no energy is accumulating then the energy input is the heat in and the energy output is the work and heat out.
What is the Word used when energy input is equal to energy output?
Then you can say the device has a 100% efficiency.
If the input work on a machine is equal to its output work does the machine has efficiency?
If the useful energy output of a system is equal to the energy input, the following calculation can be done:Efficiency = (Useful energy out) / (Energy In)Efficiency = 1Efficiency = 100%Therefore, the machine you describe does have an efficiency value, which is equal to 100%. Very few situations like this exist though, unfortunately.
What stronger work output or work input?
In theory, work output might be equal to work input; that would be 100% efficiency. In practice, the output of a machine will be less than the input; i.e., some energy will be lost.In theory, work output might be equal to work input; that would be 100% efficiency. In practice, the output of a machine will be less than the input; i.e., some energy will be lost.In theory, work output might be equal to work input; that would be 100% efficiency. In practice, the output of a machine will be less than the input; i.e., some energy will be lost.In theory, work output might be equal to work input; that would be 100% efficiency. In practice, the output of a machine will be less than the input; i.e., some energy will be lost.
What is the relationship between work input and work output with reference to the law of conservation of energy?
Work output is less than or equal to the work input. This is the law of conservation of energy.
When energy input is equal to energy output?
100 % efficiency, and the beginning of perpetual motion. OR you have an electric heater - and all loses are what you want.
Why is the output of a machine never equal to the work input?
Bcoz of the loss of energy in form of heat , sound etc.
Why is the work output of a machine never equal to the input?
Bcoz of the loss of energy in form of heat , sound etc.
Is an electric toothbrush input energy equal yo useful output energy?
To my knowledge, the input energy would be less than the output due to the fact that no machine is 100% efficient. There would be some energy lost as a result of friction or some other such force that hinders efficiency.
What will be the total energy of atom having negative nucleus and positive electron?
This would be, by definition, antimatter. It would equal the total energy output of regular matter.
Why when you press a it shows a?
It is a function. A function is the relationship between the input of an equation and its output wherefor each input has only one output (or answer). 2+2 will always equal 4, and pressing "a" in a word processor will always render and "a" on the screen.
