The work done on a machine is ________ .
Hence, the work done on a machine is work in.
If the efficiency of a machine is 10 % and the work done on a machine is 2000 J, then what is the work done by the machine?
Assertion (A): In a practical simple machine work done by the effort is always equal to the work done on the load.
Reason (R): No energy is lost in a simple machine.
Two machines A and B have efficiencies in the ratio 3:4. If the work done on machine A is 1200 J and on machine B is 1800 J, then what is the ratio of the work done by A to B