A 100 W electric bulb is used for 10 hours a day. How many units of energy are consumed in 30 days ?
1
10
30
300
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CDS-2 – 2019
The bulb is used for 10 hours a day for 30 days.
Total time = 10 hours/day × 30 days = 300 hours.
Energy consumed = Power (kW) × Total Time (h)
Energy consumed = 0.1 kW × 300 h = 30 kWh.
Since 1 unit = 1 kWh, the energy consumed is 30 units.