Define power. Find the cost of electrical energy consumed in a house in 1 month
if 5 bulbs of 60W and 6 bulbs of 40W and 3 bulbs of 100W are lighted for
eight hours daily.(cost of 1 unit electricity is Rs 4)
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Answer:
Explanation:
Energy = Power*time
Energy consumed by 100 W bulb per day = 2∗100 Wh
= 0.2 kWh
Energy consumed by 40 W bulbs per day = 4∗40∗4 Wh
= 0.64 kWh
Total energy consumed per day = 0.2 + 0.64 kWh
= 0.84 kWh
Therefore, the energy consumed in 30 days = 30∗0.84 kWh
= 25.2 kWh
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