a geyser has a rating 2 kilowatt 240 V what is a cost of using it for 15 minutes if the cost of electricity is rupees 4 per unit
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Energy = Power × Time
= 2 kW × 1/4 hour
= 0.5 kWh
= 0.5 unit
Cost = 0.5 unit × ₹4 /unit = ₹2
= 2 kW × 1/4 hour
= 0.5 kWh
= 0.5 unit
Cost = 0.5 unit × ₹4 /unit = ₹2
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