Question

State law of machine and explain reversible machine

Answer 1

When we are using a machine to lift a weight, the work done is governed by the Law of Machine, which states that when on a machine (p) an effort is applied It has to be equal to the weight (w) of the load it will be lifting.

Hence, p = mw + c where m and c are positive constants of the machine.

A reversible machine is capable of performing reversible cycles.