A copper wire and an iron wire have the same length and thickness. When both are kept at the same temperature, which wire will have lower resistance and why?

Subject: General Awareness | Topic: Science | Difficulty: MEDIUM

Options

1. (A) Both wires, because thickness is the only factor
2. (B) The iron wire, because iron is a better conductor
3. (C) Both wires, because material does not affect resistance
4. (D) The copper wire, because copper is a better conductor

Verified Answer

Option (D): The copper wire, because copper is a better conductor

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