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What is a quantity expressed as a percentage that measures the ratio of work output to work input?
Wiki User
∙ 11y ago
The comparison of a machines work output with its work input represented as a ratio is called the efficiency of the machine. In the real world this ratio can never be 1. The reason is that whatever work is input to the machine cannot be converted entirely to output. There are losses due to friction, heat generation and dissipation, air resistance etc. If we could have a machine with an efficiency of 1, we can have perpetual motion. That means that you drive a car up to say 65 mph on the highway and then turn off the engine, you will be going on the highway forever without spending another dime for gas. Turbines in power plants would just have to be started and brought to operating speed and from then on they will run forever.
Wiki User
∙ 11y ago
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What quantity measures the output force of a machine relative to the input force?
Efficiency.
Efficiency can be express mathematically as?
Efficiency = Output/Input. This is usually expressed as a percentage but may be given in the form of a ratio.Another AnswerEfficiency is output power divided by input power, normally expressed as a percentage.
Does isoquant positive or negative?
An isoquant is a graph showing the same quantity of output for various combinations of inputs. Since these are all measures of quantity, they must all be positive.
When discussing engines the ratio of output work to input work expressed as a percentage is called .?
The efficiency of the machine.
What does efficiency mean in science?
The Efficiency of a system is the ratio (Input Energy / Output Energy). The fraction is usually expressed as a percentage.
What instrument measures alternator output?
An ammeter. It measures the electrical current output.
What is the quantity of output of this equation The numbers are not filled and you have to answer the numbers for the dollar signs and to do this you have to use the quantity of output formula.$$$10?
The answer is the quantity of the two numbers
What do you understand by efficiency of motor or generator?
The efficiency of any machine is the output power divided by the input power, usually expressed as a percentage.
How do you caculate productivity?
productivity=output quantity/input quantity
What is meabt by operating leverage?
- It measures the EBIT's percentage change as a result of a change of one percent in the level of output. - It helps in measuring the business risk.
How would you describle the quantity and quality of output generated by a former employee?
How would you describe the quantity and quality of output generated by the former employee
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.
