Which uses more energy: a 250W TV set in 1 hour or a 1200W toaster in 10 minutes?
ScienceClass 10ICSEAnswered 27 Mar 2026
Answer
Case 1: TV set
P = 250W = 0.25kWh
T = 1 hour
Energy consumed, E = PT = 0.25kWh
Case 2: Toaster
P = 1200W = 1.2kW
T = 10 min = 1/6 hour
Energy consumed, E = PT = 0.2kWh
Therefore, it can be concluded that TV uses more power.