Question

Power spent by a machine depends on:

• A. the amount of work done by the machine
• B. time taken by the machine to do the work
• C. both A and B
• D. neither of A and B

Answer 1

The correct option is C both A and B

$Power=\frac{Workdone}{timetaken}$

Power spent by a machine depends on two factors:
(i) the amount of work done by the machine and
(ii) the time taken by the machine to do the work.
If a machine performs a given amount of work at a faster rate, more power is spent by the machine.