Question

An electric heater rated 1000 W is used for 5 hours daily. For cost per unit of ₹6.00,calculate the total cost for running the device for the month of September (in ₹)?

• A. 900
• B. 500
• C. 180
• D. 150

Answer 1

Answer:

A. 900

• Energy consumed per day = 1000W * 5 hours = 5000 Wh = 5 kWh

• Number of days in September = 30

• Total energy consumed in September = 5 kWh/day * 30 days = 150 kWh

• Total cost = 150 kWh * ₹6.00/kWh = ₹900