Question

An electric bulb consumes 10,800J in 3 minutes. Calculate its power.

Answer 1

Energy consumed= 10,800J
Time taken= 3 minutes
3x60sec= 180s
Power= Energy consumed/Time Taken
Thus, Power= 10,800/180
= 60 Watts 60 W

Answer 2

Formula

Power = WORK / TIME

Given :

Work = 10,800 J

Time = 3 min

         = 3 × 60 s

         = 180 s

Power = 10,800 J / 180 s

           = 60 W

ANSWER

The power is 60 W

Thanks !