Multiple choice

If a lamp consumes 40 W in an hour and remains on for 1750 h, then calculate the kilowatt-hour consumption.

  1. 70,000 kwh

  2. 70 kwh

  3. 700 kwh

  4. 43750 kwh

  5. 4375 kwh
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

We know that 1 kilowatt = 1000 watt. So, 40 watt = 40/1000 = 0.040 kwatt. Now as per the formula, 0.040 X 1750 = 70 kwh

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