an electric heater rated 800 watt operates 6h/day.find the cost of energy to operate it for 30 days at rs. 3 per day
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Total for 30 days = 30 × 6 = 180 hours
Energy = Power × Time
= 800 W × 180 h
= 144 kWh
Cost = 144 kWh × ₹3.00 / kWh
= ₹432
Energy = Power × Time
= 800 W × 180 h
= 144 kWh
Cost = 144 kWh × ₹3.00 / kWh
= ₹432
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