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

Answers (1)

 For TV set :

Given :  Power = 250W  and  time = 1 hr = 3600 seconds

Energy consumed = H=PI

                          H=250	imes 3600=900000J

 For toaster :

Given :  Power = 1200W               and       time = 10 minutes = 600 seconds

Energy consumed = H=PI

                          H=1200	imes 600=720000J

Thus, TV set uses more energy than a toaster.

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