Energy consumed in a home is 250 units then the total energy in Joule will be:

Correct answer: (c) 9 × 10⁸

Explanation

In electricity billing, 1 unit = 1 kilowatt-hour (kWh), so 250 units = 250 kWh.

Conversion: 1 kWh = 3.6 × 10⁶ J.

Total = 250 × 3.6 × 10⁶ = 9 × 10⁸ Joules.