What is meant by the efficiency of a machine is 80%

Question

asked Jan 7, 2021 162k views

2 Answers

Hjl · Answer 1 · 2021-01-08T02:05:05+0000

Answer:

It means that the total energy produced by the machine is 80 percent and remaining 20 percent is wasted in the term of heat deu to friction.

Hope it is helpful !

Dwurf · Answer 2 · 2021-01-11T19:40:57+0000

Answer:

It means that 80% of our effort is converted to useful whereas 20% of our effort is wasted to overcome frictional and gravitational force.