One megawatt hour is equal to:
Correct answer: B. 3.6 × 10⁹ J
- A. 3.6 × 10⁷ J
- B. 3.6 × 10⁹ J
- C. 3.6 × 10¹² J
- D. 3.6 × 10¹⁸ J
Explanation
1 MWh = 10 W × 3600 s = 3.6×109 J. Thus option B is correct.
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About Work and Energy
Work transfers energy when a force causes displacement, while kinetic energy, gravitational potential energy and power describe motion, position and the rate of energy transfer. The work-energy theorem links net work with change in kinetic energy, and efficiency accounts for energy losses rather than treating them as energy destruction.
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