Question

Which uses more energy: A 250 W tv set in 1 hour or a 1200 W Toaster in 10 minutes?

Answer 1

Power=energy/time
In first case,time=1min=60sec,power=250watt
250=e/60min
250*60=e
15000 joule=energy
In second case,time=10min=60*10sec=600sec,power=1200watt
1200=e/600
1200*600=e
720000joule=energy.
Therefore,a toastar uses more energy in 10 min.
Thnx:))

Answer 2

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$\bold\red{hello...frd\:swigy\:here}$

$\bold\green{Your\:Answer:-}$

Energy consumed by an electrical appliance is given by

H = Pt

For the TV set:

Power W = 250 W

time t = 1 hour = 3600 seconds

So, energy consumed

H = 250 × 3600 = 900000 J

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For the toaster:

Power W = 1200 W

time t = 10 minutes = 600 seconds

So, energy consumed H = 1200 × 600 = 720000 J

Hence, TV set uses more energy than toaster.

I hope, this will help you___❤❤

Thank you

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