A house is equipped with 100 watt bulb used for 5 hours a day and two fans hundred words each 100 watt each used for 10 hours a day and two tube lights 40 watt each used for 5 hours a day and fridge of 500 watt used for 10 hours a day. Calculate the electric bill if unit price cost to rupees
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Answer:
Energy consumed = power×time
Energy consumed by bulb = 100×5 = 500Whr.
Energy consumed by two fans = 2×100×10 = 2000Whr.
Energy consumed by two tube lights = 2×40×5 = 400Whr.
Energy consumed by fridge = 500×10 = 5000Whr.
Total energy consumed per day = 7900Whr = 7.9Kwh.
Cost = unit × cost per unit
= 7.9 × 2
= 15.8
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