A 75W fan runs for 8 hours daily. The electricity cost is ₹8 per kWh. What is the daily running cost?
Question: A 75W fan runs for 8 hours daily. The electricity cost is ₹8 per kWh. What is the daily running cost?
Solution:
Cost per day = (Power in kW × Hours) × Unit cost
Power (kW) = 75 / 1000 = 0.075
Energy = 0.075 × 8 = 0.6 kWh
Cost = 0.6 × 8 = ₹4.80
So, the daily cost is ₹4.80.
Power (kW) = 75 / 1000 = 0.075
Energy = 0.075 × 8 = 0.6 kWh
Cost = 0.6 × 8 = ₹4.80
So, the daily cost is ₹4.80.
Equation/Formula:
cost = (watts/1000) × hours × unitCost
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