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Efficiency = useful output power / input power
Laurie Hammes
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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 effect does friction have on a machines efficiency?
Efficiency of the machine is reduced due to loss of energy by friction.
How can a machine's efficiency be calculated?
You use the definition of "efficiency": you divide output power by input power. Both of these, of course, need to be measured or calculated.
What is a comparison of a machines work input and work output?
mechanical efficiency
How is a machines mechanical efficiency is calulated?
Work Output/Work Input X 100
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.
How efficiency is calculated?
work it out
What is efficiency and how is it calculated?
The efficiency is output divided by input.
What effect does friction have on a machines efficiency?
Efficiency of the machine is reduced due to loss of energy by friction.
Why doesn't any system have 100 percent efficiency?
frictionIn real machines, as opposed to ideal machines, there is always friction that reduces the efficiency of the machine. Lubricants like oil can be used to reduce friction and improve efficiency.
How is the efficiency of a machine calculated?
Efficiency = useful output power / input power
How can a machine's efficiency be calculated?
You use the definition of "efficiency": you divide output power by input power. Both of these, of course, need to be measured or calculated.
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).
How is boiler efficiency calculated?
Boiler efficiency is calculated by determining the steam value per hour and dividing it by the amount of fuel which is consumed per hour. By doing this one can determine the efficiency of a boiler.
Is the efficiency of a machine calculated by the ratio or by the product?
efficiency is a product of the input versus the output
How is cholesterol calculated?
by tests and machines
What is a comparison of a machines work output and work input?
mechanical efficiency
