A lamp draws a current of 10 A from a 220 V supply. What is the cost of using the lamp 5 hours per day for 30 days if the cost of 1 unit is Rs.5.0?
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Step 1
Given that the lamp draws a current of 10 A from a 220 V supply, the power consumed by the lamp can be calculated using the formula: Power = Current x Voltage. Power = 10 A x 220 V = 2200 W = 2.2 kW. Energy consumed per day = Power x Time = 2.2 kW x 5 hours = 11 Show more…
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