question_answer 16)

Which uses more energy, a 250 W TV set in 1 h, or a 1200 W toaster in 10 minutes?

Answer:

Energy used by 250 W TV set in 1 h = 250 W × 1h = 250 Wh. Energy used by 1200 W toaster in 10 min. (i.e., 1/6 h) = 1200 W × (1/6) h = 200 Wh. Thus, a 250 W TV set uses more power in 1 h than a 1200 W toaster in 10 minutes.