Monikalimbu Monikalimbu

01-05-2019
Physics

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the value of efficiency is never 100% or more in practice. why

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MuhammadSaqib MuhammadSaqib

01-05-2019

Answer: Because of presence of friction in most cases as friction exists in ever machine/body, so whenever it works, friction causes heat and sound energy as well, hence, proving that a system cannot be 100% efficient due to friction.

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