71st BPSC Prelims (2025), question 123

🔬 Science & Technology

  1. If energy consumed in a home is 250 units, the total energy in Joules will be:

    1. 9×10⁵
    2. 8×10⁶
    3. 9×10⁸
    4. 10⁵
    Show answer

    Answer: C — 9×10⁸

    1 unit = 1 kWh = 3.6×10⁶ J; 250 units = 250×3.6×10⁶ ≈ 9×10⁸ J.

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