Physics, asked by naqviwafa100, 1 month ago

Define the term efficiency of a machine. Give two reasons why a machine can never be 100% [3] efficient?
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Answers

Answered by shrabantijana5811
0

It is the ratio of the useful work done by the machine to the work put into the machine by the effort.

In actual machine there is always some loss of energy due to friction and weight of moving parts, thus the output energy is always less than the input energy.

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