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  9. Q215

RRB Group D (Level-1 posts) 2025 · Question 215 of 386

If an electric heater consumes 1000 W of power, how much electrical energy does it use in 1 hour?

  1. A1 kWhCorrect
  2. B1000 J
  3. C3600 J
  4. D1000 kWh

Answer: A. 1 kWh

Official answer key verified. Detailed explanation coming soon.

Source: RRB Group D 2024 Question Paper PDF (Dec 27, 2025) (Shift 1) · official-answer-key

← Q214View full paper (386 questions)Q216 →

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