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Question

Heat generated in an electrical resistor is measured in which SI unit?

This question was previously asked in
RRB NTPC 2025 Under Graduate CBT 2 Question Paper PDF (17-Sep-2026) (Shift 1)
The correct answer is

Joule

Heat generated in an electrical resistor is measured in Joule, the SI unit of energy and work.

Coulomb measures electric charge, Volt measures potential difference, and Watt measures power — none of which directly measures the heat energy itself.

Hence, Joule is the correct answer.

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