Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
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Q · Work, Energy and PowerMedium · 45s
Which of the following represents the correct unit equivalence?
TopicWork, Energy and Power
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
1 kWh = 1000 W × 3600 s = 3.6 × 10⁶ J.
Final Answer: Option D — 1 kWh = 3.6 × 10⁷ J