A 100 W electric bulb is used for 8 hrs/day. What would be the units of energy consumed in the month of April ?
24 units
16 units
8 units
0·8 units
Answer is Right!
Answer is Wrong!
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UPSC CISF-AC-EXE – 2021
Power = 100 W = 0.1 kW (kilowatt).
The bulb is used for 8 hours per day.
The month of April has 30 days.
Total usage time in April = 8 hours/day × 30 days = 240 hours.
Energy consumed in kWh = Power (kW) × Total time (hours) = 0.1 kW × 240 hours = 24 kWh.
One unit of electrical energy is equivalent to 1 kWh.
Therefore, the energy consumed is 24 units.
– Calculate the total usage time in hours for the month.
– Use the formula: Energy (kWh) = Power (kW) × Time (hours).
– 1 unit of energy = 1 kWh.