A lamp marked 100W, 250V is lit for 10 hours. If it operates normally and 1KWh of electrical energy costs 2k, what is the cost of lighting the lamp?
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Correct Answer: Option B
Explanation:
100W X 10h = 1000Wh = 1KWh thus cost is 2k
100W X 10h = 1000Wh = 1KWh thus cost is 2k