Question on: WAEC Physics - 1994

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?

A
1k
B
2k
C
5k
D
10k
Ask EduPadi AI for a detailed answer
Correct Option: B

100W X 10h = 1000Wh = 1KWh thus cost is 2k

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