Question

is there any real machine where its efficiency is 100%? why?

Answer 1

Answer:

In practice no machine can achieve 100% efficiency. When you mean 100% efficiency it means your input energy should be completely transformed to output energy. ... Various mechanical and electrical losses like friction and eddy current losses are the reasons behind the energy dissipation.

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Answer 2

Answer:

1. no,because the machine has the efficiency maximum of 75% if there is any machine that is 100% efficiency then people will work only with machines and 25% of machines efficiency is to be wasted