which uses more energy a 300 watt TV set in 1 hour or 1200 watt toaster in 30 minutes
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For T.V set Power (P) = 300w, Time (t) = 1hr=60×60=3600s
for toster
power=1200W
time =10min = 10*60 =600s
E=P*T
Energy consumed by the TVset = 300*3600 = 10.8*10000J ∴ Energy consumed by a toaster = 1200 × 600 = 7.2× 105J ∴ the energy consumed by a 300 W TV set in 1 h is more than the energyconsumed by a toaster of power 1200 W in 10 minutes.
Explanation:
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