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Friction is the most common factor affecting the efficiency of any machine.
Wiki User
∙ 12y ago
Anonymous
Anonymous
Wiki User
∙ 15y agoEfficiency is simply, the ratio of the output to the input of any system .That is, the amount of energy produced that is converted into work [Work =Force X Displacement] For example, a combustion engine produces alot of energy but mostly in the form of heat and noise.Only ~25% of the energy trapped in the hydrocarbon bonds is concverted from chemical to mechanical energy.Therefore, it has an efficiency of roughly 25%. So efficiency of machines is the actual work they do in relation to the total amount of power they produce.
Wiki User
∙ 10y agoReduction of losses, such as those due to friction, makes a machine more efficient.
Fatoumata Saidykhan
Efficiency is always less than 100% due to the friction. So therefore efficiency of a machine is always affected by a friction
Wiki User
∙ 12y agoIt is defined as the ratio of the output of a machine to the input to the machine.
Wiki User
∙ 9y agoIt is the output energy compared to the input energy. This will always be less than 100%
Wiki User
∙ 9y agoEntropy is the main factor.
Wiki User
∙ 11y agofriction
Anonymous
Frictiøn ez the factør that ãffeçt èffîeincy øf mãçhíñe
Anonymous
Anonymous
Friction
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How is a real machine and an ideal machine different?
An ideal machine can reach 100% efficiency as there is no friction or other restraints involved, whereas a real machine can never reach 100% efficiency.
How is the efficiency of a compound machine calculated?
The efficiency of a machine is found by dividing the amount of work done by a machine by the amount of energy used by a machine. The answer is then multiplied by 100 to give a percentage.
How is a machine's efficiency of a calculated?
Efficiency = useful output power / input power
Why a high-efficiency machine is more desirable than a low- efficiency machine?
High-efficiency machines do more for less and are therefore more desirable than a low-efficiency machine.AnswerHigher efficiency means lower energy losses and, therefore, such machines are more economical than low-efficiency machines.
What does reducing friction in a machine do?
Inceases its efficiency.
Why is a high efficiency machine is more desirable than a low efficiency machine?
A high efficiency machine will produce more of what is it that you want with the same power as the low efficiency one. In other words, for a low efficiency machine do as much as a high efficiency one, you have to give it more power (energy).
The efficiency of a machine is usually expressed in?
The efficiency of a machine is usually expressed as a percentage. The ideal efficiency of a machine is 100-percent.Another AnswerThere are no units of measurement for efficiency, because you are comparing like with like: output power divided by input power.
Describe why a high-efficiency machine is more desirable thana low-efficiency machine?
A high efficiency machine will produce more of what is it that you want with the same power as the low efficiency one. In other words, for a low efficiency machine do as much as a high efficiency one, you have to give it more power (energy).
What is a machine with efficiency of less than one?
no machine has one
What is the machine efficiency of a machine that produces 400 joules of work output from a work input of 500 joules?
The efficiency is 80%. To find the efficiency, 400/500 = 80%.
What is the efficiency of the machine?
a machine applies a force of 100 newtons over a distance of 10 meters to raise a500 newtons drum 1.5 meters. what is efficiency of the machine ?
What is an efficiency ratio?
The efficiency ratio for a machine usually refers to the ratio of the useful energy available from a machine and the energy put into it.
How is a real machine and an ideal machine different?
An ideal machine can reach 100% efficiency as there is no friction or other restraints involved, whereas a real machine can never reach 100% efficiency.
How is the efficiency of a compound machine calculated?
The efficiency of a machine is found by dividing the amount of work done by a machine by the amount of energy used by a machine. The answer is then multiplied by 100 to give a percentage.
What limits the efficiency of machine?
friction
Why were machine guns used?
Efficiency
What is the mechanical efficiency of a machine whose work input is 100j and work output is 30j?
The mechanical efficiency of this machine is 30 percent.
