Multiple choice

The resistance of a conductor depends upon its

  1. dimensions

  2. nature of the material

  3. temperature

  4. all of the above
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D Correct answer
Explanation

Resistance depends on length (R ∝ L), cross-sectional area (R ∝ 1/A), material resistivity (nature), and temperature. Temperature affects resistivity in conductors. All these factors determine the total resistance of a conductor.

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