Question

Define the term efficiency of a machine​

Answer 1

Answer:

ans:

Explanation:

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.

Answer 2

$\mathfrak{\huge{\green{\underline{\underline{Answer :}}}}}$

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.