Suppose a student calculated the efficiency of a machine to be 110% could this answer be correct? which law of physics is violate?

1 Answer
Shwetank Mauria
Mar 10, 2018

No, it cannot be correct. Law of conservation of energy is violated.

Explanation:

The efficiency is the energy output, divided by the energy input in a machine and is expressed as a percentage. A perfect process is one in which entire energy input results in same amount of energy output and as such, would have an efficiency of #100%#.

In case efficiency is calculated as #110%#, it means energy output is #10%# more than energy input. This is just not possible and means that it has been calculated or measured in a wrong way.

This is violation of law of conservation of energy.

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