A electric heater rated 800W operates 6h/day. Find the cost of energy to operate it for 30 days at rs 3.00 per unit
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Total time it operates for 30 days = 30 × 6 = 180 hours
Energy = Power × Time
= 800 W × 180 hour
= 144000 Wh
= 144 kWh
Cost = 144 kWh × ₹3.00/kWh = ₹432
P.S
You should know the fact we take 1 unit = 1 kWh
So, ₹3.00 per unit means it charges ₹3 for every 1 kWh of energy consumption.
Energy = Power × Time
= 800 W × 180 hour
= 144000 Wh
= 144 kWh
Cost = 144 kWh × ₹3.00/kWh = ₹432
P.S
You should know the fact we take 1 unit = 1 kWh
So, ₹3.00 per unit means it charges ₹3 for every 1 kWh of energy consumption.
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