Question

An electronic lamp of 100W is used daily for 5 hours .calculate the number of units consumed in a month of 30 days

Answer 1

Energy Consumed = 100*5*30 = 15000wh = 15kwh = 15 units

Answer 2

Hi freind
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Your answer
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Power of an electric lamp = 100 W =100/1000 KW = 0.1 KW

Number of hours for which the bulb is used = 5 hours

Then,
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Power consumed in one hour = (0.1 × 5) Kwh = 0.5 Kwh

Therefore,
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Power consumed in 30 days = (0.5 × 30) Kwh = 15 Kwh or 15 units

HOPE IT HELPS