Question

Which uses more energy,a 250 WTV set in 1 hours or a 1200 w toaster in 10 minutes???​

Answer 1

Answer:

Energy consumed by the TVset = 250*3600 =9*105J ∴ Energy consumed by a toaster = 1200 × 600 = 7.2× 105J ∴ the energy consumed by a 250 W TV set in 1 h is more than the energyconsumed by a toaster of power 1200 W in 10 minutes.

Answer 2

AnswEr :

• Power of TV = 250 W
• Time = 1 hour = 3600s

• Power of Toaster = 1200 W
• Time = 10 mins = 600s

To FinD :

• Which device use more, energy

SoluTion :

For TV :

➝ Energy = Power * Time

➝ Energy = 250 * 3600

➝ Energy = 90,000 J

For Toaster :

➝ Energy = Power * Time

➝ Energy = 1200 * 600

➝ Energy = 7,20,000 J

➾ Toaster uses more energy