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A refrigerator having a power rating …

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A refrigerator having a power rating of 3KW operates for 10 hour a day. Calculate the cost (in rupees) of electrical energy rupees 3.40 per KWh

Posted by G Pranesh 2 years, 2 months ago

CBSE > Class 10 > Science

1 answers

G Thanusri 2 years, 1 month ago

Energy consumed = power x time (i) Energy = 3 kW × 10 h = 30 kWh (ii) 1 kilowatt hour (kWh) = 3.6×106 J 30kWh=30×3.6×106J=1.08×108J

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