Question

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

250W tv uses more energy

Since , energy E = P x t

I hour =3600s and 10 mins = 600 s

E for tv set = 250x3600 = 900000 J

E for toaster= 1200x600= 72000 J only.

Answer 2

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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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