A 100 W electric bulb is used for 10 hours a day. How many units of electrical energy are consumed by the bulb in 3 days? (1 unit = 1 kWh)

examrobotsa's picture

Submitted by examrobotsa on

Q: 66 (CDS-I/2023)
A 100 W electric bulb is used for 10 hours a day. How many units of electrical energy are consumed by the bulb in 3 days? (1 unit = 1 kWh)

question_subject: 

Physics

question_exam: 

CDS-I

The energy consumed per day is 100 W * 10 hours = 1000 Wh = 1 kWh. In 3 days, the bulb consumes 3 kWh, which is 3 units of electrical energy.