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27 February, 08:58

Why is the efficiency of a machine always less than 100 percent?

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  1. 27 February, 12:30
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    The efficiency of a machine is always less than 100 percent because there is always loss of energy in every process. It is impossible to achieve a 100 percent efficiency in all processes that we have. The energy lost is in the form of light or heat energy.
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