Which appliance consumes more energy: a 100 watt electric bulb or a 150 watt electric iron in a minute?

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

Power = Energy consumed / Time taken
So Energy consumed = power x time
1) Energy consumed by bulb = 100 W x 60s = 6000 J
2) Energy consumed by electric iron = 150 W x 60s = 9000 J
 
Thus, an electric iron consumes more energy.

Answered by  | 4th Jun, 2014, 03:23: PM